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   <channel>
   <title>About.com Physics: Most Popular Articles</title>
   <link>http://physics.about.com/</link>
   
   <description>These articles are the most popular over the last month.</description>
   <language>en-us</language>
  <pubDate>Sat, 04 Jul 2009 10:52:51 +0000</pubDate>
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   <title>About.com</title>
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   <link>http://www.about.com/</link> 
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         <item>
         <title><![CDATA[Physics]]></title>
         <link>http://physics.about.com/od/physics101thebasics/f/WhatisPhysics.htm</link>
         <description><![CDATA[A brief description of the science of physics.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Major Laws of Physics]]></title>
         <link>http://physics.about.com/od/physics101thebasics/p/PhysicsLaws.htm</link>
         <description><![CDATA[Physics is the study of the fundamental laws of nature.  If you want to know what some of the most important and useful of those laws of physics are, this is where you can find out.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Quantum Physics Overview]]></title>
         <link>http://physics.about.com/od/quantumphysics/p/quantumphysics.htm</link>
         <description><![CDATA[This overview of the different aspects of quantum physics is intended to provide some perspective to those new to the subject, so that they can further explore the wonders inherent in this miraculous realm.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/p/quantumphysics.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Newton&#039;s Laws of Motion]]></title>
         <link>http://physics.about.com/od/classicalmechanics/a/lawsofmotion.htm</link>
         <description><![CDATA[A basic introduction to Newton's Three Laws of Motion.  Each law of motion has important physical and mathematical interpretations needed to analyze most any problem involving the motion of physical objects]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Newton&#039;s Law of Gravity]]></title>
         <link>http://physics.about.com/od/classicalmechanics/a/gravity.htm</link>
         <description><![CDATA[An introduction to the basic principles of the law of gravity, as developed by Newton and revised over the years.  This provides the foundation for any significant work in understanding gravity, including its application to planetary motion.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Energy]]></title>
         <link>http://physics.about.com/od/glossary/g/energy.htm</link>
         <description><![CDATA[definition of energy]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/energy.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[What is a Black Hole?]]></title>
         <link>http://physics.about.com/od/astronomy/f/BlackHole.htm</link>
         <description><![CDATA[A black hole is a curvature of spacetime geometry due to an intense gravitational field.  The effects of a black hole are so extreme that even light cannot escape it, thus the name.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[What is a Photon?]]></title>
         <link>http://physics.about.com/od/lightoptics/f/photon.htm</link>
         <description><![CDATA[A description of the photon theory of light and what it means, as well as how it developed and its bizarre implications]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/lightoptics/f/photon.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Density]]></title>
         <link>http://physics.about.com/od/fluidmechanics/f/density.htm</link>
         <description><![CDATA[Density is a key concept in analyzing how materials interact in fluid mechanics, weather, geology, material sciences, engineering, and other fields of physics.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[The Fields of Physics]]></title>
         <link>http://physics.about.com/od/physics101thebasics/f/FieldsPhysics.htm</link>
         <description><![CDATA[An overview of the various fields of physics.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physics101thebasics/f/FieldsPhysics.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[A headshot of Albert Einstein]]></title>
         <link>http://physics.about.com/od/alberteinstein/ig/Albert-Einstein-photos/Albert-Einstein-headshot.htm</link>
         <description><![CDATA[Photographs of Albert Einstein.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/alberteinstein/ig/Albert-Einstein-photos/Albert-Einstein-headshot.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics Theories]]></title>
         <link>http://physics.about.com/od/physics101thebasics/tp/10inttheories.htm</link>
         <description><![CDATA[Find out some of the &quot;weirdest&quot; concepts in physics, mostly from the realm of quantum physics and Einstein's theory of relativity, or attempts to consolidate these two frameworks.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Free Falling Body]]></title>
         <link>http://physics.about.com/od/homeworkhelp/qt/hwh_freefall.htm</link>
         <description><![CDATA[How to calculate the initial height of a dropped object, given its velocity at a point during the fall.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Matter]]></title>
         <link>http://physics.about.com/od/glossary/g/Matter.htm</link>
         <description><![CDATA[definition of matter]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/Matter.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[The Scientific Method]]></title>
         <link>http://physics.about.com/od/toolsofthetrade/a/scimethod.htm</link>
         <description><![CDATA[This introduction illuminates the main principles of the scientific method, as well as hypothesis creation and testing procedures that are used in executing the scientific method.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Einstein&#039;s wax figure at Madame Tussaud&#039;s]]></title>
         <link>http://physics.about.com/od/alberteinstein/ig/Albert-Einstein-photos/Wax-Einstein.htm</link>
         <description><![CDATA[Pictures of Albert Einstein.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/alberteinstein/ig/Albert-Einstein-photos/Wax-Einstein.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Mass]]></title>
         <link>http://physics.about.com/od/glossary/g/mass.htm</link>
         <description><![CDATA[Definition of mass]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/mass.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Vector Mathematics]]></title>
         <link>http://physics.about.com/od/mathematics/a/VectorMath.htm</link>
         <description><![CDATA[Here you will be introduced to the mathematics necessary for the manipulation of vector quantities, which have both a magnitude and direction.  Vectors are used throughout physics, so an understanding of these concepts is important to solve many physics problems.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/mathematics/a/VectorMath.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Heat Energy]]></title>
         <link>http://physics.about.com/od/glossary/g/heat.htm</link>
         <description><![CDATA[definition of heat energy]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/heat.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[SI Units]]></title>
         <link>http://physics.about.com/od/toolsofthetrade/a/SIunits.htm</link>
         <description><![CDATA[Physics uses the International System of Measurements (SI), as does most of science.  This introduction to the SI units provides a foundation for the units that are used to quantify the physical qualities of the universe.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/toolsofthetrade/a/SIunits.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Visible Light Spectrum]]></title>
         <link>http://physics.about.com/od/lightoptics/a/vislightspec.htm</link>
         <description><![CDATA[The visible light spectrum is the range of electromagnetic radiation that we are most familiar with.  Here you can learn even more about it!]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/lightoptics/a/vislightspec.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[The Big Bang]]></title>
         <link>http://physics.about.com/od/astronomy/f/BigBang.htm</link>
         <description><![CDATA[One of the most impressive theories of the 20th century, the Big Bang explains the origins of the universe ... at least up to a point.  Find out what the theory actually says, what it does not say, and what it may or may not say.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Acceleration]]></title>
         <link>http://physics.about.com/od/glossary/g/acceleration.htm</link>
         <description><![CDATA[Definition of acceleration]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/acceleration.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Velocity]]></title>
         <link>http://physics.about.com/od/glossary/g/velocity.htm</link>
         <description><![CDATA[Definition of velocity]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/velocity.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Surface Tension]]></title>
         <link>http://physics.about.com/od/physicsexperiments/a/surfacetension_4.htm</link>
         <description><![CDATA[Physics experiments utilizing surface tension.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsexperiments/a/surfacetension_4.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Speed]]></title>
         <link>http://physics.about.com/od/glossary/g/speed.htm</link>
         <description><![CDATA[Definition of speed]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/speed.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Force]]></title>
         <link>http://physics.about.com/od/glossary/g/force.htm</link>
         <description><![CDATA[Definition of force, how force applies to physics]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/force.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Wave Particle Duality]]></title>
         <link>http://physics.about.com/od/lightoptics/a/waveparticle.htm</link>
         <description><![CDATA[We explore wave particle duality: the particle properties of waves and the wave particles of particles.  What do these strange properties mean?  How can we use them to understand physics?]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Theory of Relativity]]></title>
         <link>http://physics.about.com/od/relativisticmechanics/a/relativity.htm</link>
         <description><![CDATA[An overview of Einstein's Theory of Relativity.  Learn about special relativity &amp; general relativity, including the Lorentz transformations that make them possible.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/relativisticmechanics/a/relativity.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Laws of Thermodynamics]]></title>
         <link>http://physics.about.com/od/thermodynamics/a/lawthermo.htm</link>
         <description><![CDATA[An introduction to the laws of thermodynamics and how they are used to solve problems involving heat or thermal energy transfer.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/thermodynamics/a/lawthermo.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Kirchhoff&#039;s Laws]]></title>
         <link>http://physics.about.com/od/electromagnetics/f/KirchhoffRule.htm</link>
         <description><![CDATA[Kirchhoff's Laws are some of the most fundamental and important rules in electronics.  Kirchhoff's Current Law defines how current is distributed in an electronic circuit, while Kirchhoff's Voltage Lawdefines the distribution of voltage.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Entropy]]></title>
         <link>http://physics.about.com/od/glossary/g/entropy.htm</link>
         <description><![CDATA[definition of entropy]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/entropy.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Significant Figures]]></title>
         <link>http://physics.about.com/od/classroomphysics/a/SigFigs.htm</link>
         <description><![CDATA[When measuring physical quantities, scientists have to keep track of their level of precision.  This article will discuss how scientists use significant figures to do just that, and how you can use significant figures without error in your work.  It also discusses the role of scientific notation in making large and small numbers manageable.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Thermodynamics Overview]]></title>
         <link>http://physics.about.com/od/thermodynamics/p/thermodynamics.htm</link>
         <description><![CDATA[Information on the field of thermodynamics, from the basics of temperature to kinetic theory to the laws of thermodynamics.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[A miniature of Einstein from a South Korean science museum]]></title>
         <link>http://physics.about.com/od/alberteinstein/ig/Albert-Einstein-photos/Einstein-Miniature.htm</link>
         <description><![CDATA[Pictures of Albert Einstein.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/alberteinstein/ig/Albert-Einstein-photos/Einstein-Miniature.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Voltage]]></title>
         <link>http://physics.about.com/od/glossary/g/voltage.htm</link>
         <description><![CDATA[Definition of Voltage]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/voltage.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Fundamental Forces of Physics]]></title>
         <link>http://physics.about.com/od/physics101thebasics/f/fund_forces.htm</link>
         <description><![CDATA[An overview of the four fundamental forces of physics and why they are so fundamental.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Transistor]]></title>
         <link>http://physics.about.com/od/electroniccomponents/f/transistor.htm</link>
         <description><![CDATA[Understand how a transistor functions, and how its design incorporates into an overall electronic circuit.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/electroniccomponents/f/transistor.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Kinetic Energy]]></title>
         <link>http://physics.about.com/od/energyworkpower/f/KineticEnergy.htm</link>
         <description><![CDATA[Kinetic energy is the energy of motion, a concept which is used widely in physics to solve problems involving changes in motion.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Double Slit Experiment]]></title>
         <link>http://physics.about.com/od/lightoptics/a/doubleslit.htm</link>
         <description><![CDATA[Learn about Young's Double Slit experiment, where interference patterns seem to prove the wave theory of light.  But there's way more to this simple experiment than meets the eye.  We'll explain the original experiment and its quantum mechanical permutations.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Power]]></title>
         <link>http://physics.about.com/od/glossary/g/power.htm</link>
         <description><![CDATA[Definition of power]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Formulating a Hypothesis]]></title>
         <link>http://physics.about.com/od/physics101thebasics/a/hypothesis.htm</link>
         <description><![CDATA[Information on formulating a scientific hypothesis.  Here you will also find discussions of models, theories, and laws, as well as the differences between them.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Six Simple Machines]]></title>
         <link>http://physics.about.com/od/physicsintherealworld/p/simplemachines.htm</link>
         <description><![CDATA[There are six kinds of simple machines which have few or none moving parts which provide great mechanical advantage.  Learn about these 6 machines and how they are used in your daily lives!]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Heat Transfer]]></title>
         <link>http://physics.about.com/od/thermodynamics/f/heattransfer.htm</link>
         <description><![CDATA[How does heat transfer?  What methods are most or least efficient?  What are the effects of heat transfer?]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Plasma]]></title>
         <link>http://physics.about.com/od/glossary/g/plasma.htm</link>
         <description><![CDATA[Definition of plasma]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/plasma.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Why Study Physics?]]></title>
         <link>http://physics.about.com/od/classroomphysics/f/whyphysics.htm</link>
         <description><![CDATA[Why should you study physics?  What is the use of a physics education?  If you aren't going to become a physicist, you may have questions such as these ... but there are good reasons for everyone to study physics.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/classroomphysics/f/whyphysics.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Gravity on the Earth]]></title>
         <link>http://physics.about.com/od/classicalmechanics/a/earthgravity.htm</link>
         <description><![CDATA[Our most common experience with gravity is on the surface of the Earth and much of physics relates to it.  This will tell you what you need to know about the Earth's gravity to keep from falling off into space ... actually, it will tell you a lot more than that.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/classicalmechanics/a/earthgravity.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Vector]]></title>
         <link>http://physics.about.com/od/glossary/g/vector.htm</link>
         <description><![CDATA[Definition of a vector]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/vector.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[The Photoelectric Effect]]></title>
         <link>http://physics.about.com/od/quantumphysics/a/photoelectric.htm</link>
         <description><![CDATA[A description of the photoelectric effect and its significance, which includes crushing the classical wave theory of light, Einstein's first publication, Einstein's only Nobel Prize, and one of the major steps in developing quantum mechanics.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/a/photoelectric.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Five Great Problems]]></title>
         <link>http://physics.about.com/od/physics101thebasics/a/fiveproblems.htm</link>
         <description><![CDATA[In his 2006 book <i>The Trouble with Physics</i>, Lee Smolin defined these &quot;five great problems in theoretical physics.&quot; What are they? Are they really problems? Why are they problems?]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physics101thebasics/a/fiveproblems.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Electromagnetic Spectrum]]></title>
         <link>http://physics.about.com/od/lightoptics/a/electrspectrum.htm</link>
         <description><![CDATA[The electromagnetic spectrum of light spans from radio waves to gamma rays, including that band of colors that we're most familiar with: visible light.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/lightoptics/a/electrspectrum.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[States of Matter]]></title>
         <link>http://physics.about.com/od/thermodynamics/f/matterphase.htm</link>
         <description><![CDATA[Learn about the various states of matter and the physical laws that govern them, such as phase transitions.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/thermodynamics/f/matterphase.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Free-Body Diagrams]]></title>
         <link>http://physics.about.com/od/toolsofthetrade/qt/freebodydiagram.htm</link>
         <description><![CDATA[The first step in most physics problems is drawing a free-body diagram.  This article will provide you with the necessary information to tackle this process and use it effectively to help in physics problem-solving.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/toolsofthetrade/qt/freebodydiagram.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[What is String Theory?]]></title>
         <link>http://physics.about.com/od/quantumphysics/f/stringtheory.htm</link>
         <description><![CDATA[String theory is an emerging theory that attempts to explain physics in term of a multi-dimensional universe, where the dimensions of space and time that we observe is a result of vibrations of microscopic energy strings in other dimensions.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/f/stringtheory.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[One-Dimensional Motion]]></title>
         <link>http://physics.about.com/od/classicalmechanics/a/kinematics1d.htm</link>
         <description><![CDATA[Learn the necessary equations and relationship to analyze one-dimensional motion, such as a car driving on a flat road or a free-falling body, especially in the case of a constant acceleration]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/classicalmechanics/a/kinematics1d.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Rocket Balloon]]></title>
         <link>http://physics.about.com/od/classroomphysics/ss/balloonrocket.htm</link>
         <description><![CDATA[We explain how to create a rocket balloon using common household items, and what makes it move.  Learn the wonders of the rocket balloon!]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/classroomphysics/ss/balloonrocket.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics of a Car Collision]]></title>
         <link>http://physics.about.com/od/energyworkpower/f/energyforcediff.htm</link>
         <description><![CDATA[In physics, the distinction between the concepts of energy and force can be very subtle, but important.  Energy is an absolute measure of the system, whereas the force is specifically related to the set-up of the situation.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/energyworkpower/f/energyforcediff.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[The Compton Effect]]></title>
         <link>http://physics.about.com/od/quantumphysics/a/comptoneffect.htm</link>
         <description><![CDATA[The Compton effect, where the energy of a photon decreased upon interaction with matter, is another experiment that demonstrated the particle properties of electromagnetic radiation.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/a/comptoneffect.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Current]]></title>
         <link>http://physics.about.com/od/glossary/g/Current.htm</link>
         <description><![CDATA[definition of current]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/Current.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Thermodynamic Process]]></title>
         <link>http://physics.about.com/od/thermodynamics/f/thermoprocess.htm</link>
         <description><![CDATA[What is a thermodynamic process?  How can it be used to analyze the energy within a system?  These and more questions are answered here.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/thermodynamics/f/thermoprocess.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Inertia]]></title>
         <link>http://physics.about.com/od/glossary/g/inertia.htm</link>
         <description><![CDATA[Definition of inertia]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/inertia.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Mad Scientist Costume]]></title>
         <link>http://physics.about.com/od/halloweenphysics/qt/madscientist.htm</link>
         <description><![CDATA[Learn how to create a great mad scientist costume.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/halloweenphysics/qt/madscientist.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Wave Properties]]></title>
         <link>http://physics.about.com/od/mathematics/a/wavemechanics.htm</link>
         <description><![CDATA[Waves have certain unique mathematical properties, which require some specific methods of analysis.  Here you'll learn everything you need about amplitude, frequency, wavelength and other wave properties.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/mathematics/a/wavemechanics.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics Skills]]></title>
         <link>http://physics.about.com/od/classroomphysics/f/studyingphysics.htm</link>
         <description><![CDATA[If someone is interested in physics and wants to pursue it in college and as a career, there are a number of fundamental concepts they must become familiar with.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/classroomphysics/f/studyingphysics.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Albert Einstein]]></title>
         <link>http://physics.about.com/od/alberteinstein/p/einsteinpro.htm</link>
         <description><![CDATA[A brief overview of Albert Einstein's life and work, as well as other information surrounding the popular scientific figure.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/alberteinstein/p/einsteinpro.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Fundamentals of Particles]]></title>
         <link>http://physics.about.com/od/atomsparticles/a/particles.htm</link>
         <description><![CDATA[A brief outline of the types of fundamental particles which are studied in particle physics.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/atomsparticles/a/particles.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Work]]></title>
         <link>http://physics.about.com/od/glossary/g/work.htm</link>
         <description><![CDATA[Definition of work]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/work.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Adiabatic Process]]></title>
         <link>http://physics.about.com/od/glossary/g/adiabatic.htm</link>
         <description><![CDATA[definition of an adiabatic process]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/adiabatic.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Schroedinger&#039;s Cat]]></title>
         <link>http://physics.about.com/od/quantumphysics/f/schroedcat.htm</link>
         <description><![CDATA[In 1935, Erwin Schroedinger developed a thought experiment which illuminated some of the problems with extending the microscopic concepts of quantum physics into the macroscopic realm.  The thought experiment has been used in the years since to highlight the key concepts of quantum physics, ranging from the role of the observer to the meaning of the wave function.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/f/schroedcat.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics of the Greeks]]></title>
         <link>http://physics.about.com/od/physicshistory/a/GreekPhysics_2.htm</link>
         <description><![CDATA[A description of Aristotle's contributions to physics, or natural philosophy, as it was called at the time.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicshistory/a/GreekPhysics_2.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Galileo Galilei]]></title>
         <link>http://physics.about.com/od/famousphysicists/p/galileo.htm</link>
         <description><![CDATA[Galileo Galilei is considered by many to be the father of experimental science.  His work laid the foundation for modern physics by defining physical properties in coherent mathematical terms, and establishing principles which Newton would later use to create a coherent theoretical framework for classical physics.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/famousphysicists/p/galileo.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Sublimation]]></title>
         <link>http://physics.about.com/od/glossary/g/sublimation.htm</link>
         <description><![CDATA[definition of sublimation]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/sublimation.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[What is Quantum Gravity?]]></title>
         <link>http://physics.about.com/od/quantumphysics/f/quantumgravity.htm</link>
         <description><![CDATA[Quantum gravity is an attempt to unify Einstein's theory of general relativity with quantum physics.  In essence, it tries to unify the four fundamental forces of physics into a coherent whole.  It is also called unified field theory.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/f/quantumgravity.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Unified Field Theory]]></title>
         <link>http://physics.about.com/od/quantumphysics/f/uft.htm</link>
         <description><![CDATA[Unified field theory, or grand unified theory, or &quot;the theory of everything,&quot; is an attempt to consolidate the laws of physics into a single framework.  It's actually a collection of assorted theories such as quantum gravity and string theory, all of which have the same ultimate goal of unification.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/f/uft.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Doppler Effect in Light]]></title>
         <link>http://physics.about.com/od/lightoptics/a/doplight.htm</link>
         <description><![CDATA[Learn about the manifestation of the Doppler effect from a moving light source and how the observed light exhibits either a red shift or blue shift to the wavelength and frequency.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/lightoptics/a/doplight.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Wave Interference]]></title>
         <link>http://physics.about.com/od/mathematicsofwaves/a/interference.htm</link>
         <description><![CDATA[The principle of superposition governs how waves interact, resulting in interference and diffraction.  Here you can learn about constructive and destructive interference, as well as manifestations of interference and diffraction.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/mathematicsofwaves/a/interference.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Huygens&#039; Principle]]></title>
         <link>http://physics.about.com/od/mathematicsofwaves/a/huygensprincipl.htm</link>
         <description><![CDATA[We explain Huygens' Principle of wave diffraction, which is applied in many experiments with sound and light.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/mathematicsofwaves/a/huygensprincipl.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Potential energy]]></title>
         <link>http://physics.about.com/od/glossary/g/potentialenergy.htm</link>
         <description><![CDATA[Definition of potential energy]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/potentialenergy.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Two-Dimensional Motion]]></title>
         <link>http://physics.about.com/od/classicalmechanics/a/kinematics2d.htm</link>
         <description><![CDATA[The equations necessary to analyze motion in a two-dimensional plane.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/classicalmechanics/a/kinematics2d.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Temperature]]></title>
         <link>http://physics.about.com/od/glossary/g/temperature.htm</link>
         <description><![CDATA[definition of temperature]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/temperature.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[George&#039;s Secret Key]]></title>
         <link>http://physics.about.com/od/cosmologybooks/gr/georgesecretkey.htm</link>
         <description><![CDATA[George's Secret Key to the Universe is a children's science fiction novel written by Stephen Hawking and his daughter, Lucy, intended to teach young readers about the science that describes our universe.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/cosmologybooks/gr/georgesecretkey.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Blackbody Radiation]]></title>
         <link>http://physics.about.com/od/quantumphysics/a/blackbody.htm</link>
         <description><![CDATA[Research in blackbody radiation created a major dilemma for classical physics.  The problem was resolved by Max Planck in 1900 by introducing the concepts which laid the foundation for all of quantum mechanics.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/a/blackbody.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics Experiment Books]]></title>
         <link>http://physics.about.com/od/physicsexperiments/tp/experimentbooks.htm</link>
         <description><![CDATA[A list of books that contain physics experiments and projects.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsexperiments/tp/experimentbooks.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Dry Ice]]></title>
         <link>http://physics.about.com/od/halloweenphysics/f/DryIce.htm</link>
         <description><![CDATA[A description of the physics of dry ice and how it is used to create smoke and fog.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/halloweenphysics/f/DryIce.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Common Densities]]></title>
         <link>http://physics.about.com/od/fluidmechanics/a/commondens.htm</link>
         <description><![CDATA[Find out the density of common substances.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/fluidmechanics/a/commondens.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[A photograph of Albert Einstein.]]></title>
         <link>http://physics.about.com/od/alberteinstein/ig/Albert-Einstein-photos/Albert-Einstein.htm</link>
         <description><![CDATA[Photographs of Albert Einstein.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/alberteinstein/ig/Albert-Einstein-photos/Albert-Einstein.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Experimental Methods]]></title>
         <link>http://physics.about.com/od/physics101thebasics/qt/experiments.htm</link>
         <description><![CDATA[An overview of how to conduct a scientific experiment.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physics101thebasics/qt/experiments.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics of the Impossible]]></title>
         <link>http://physics.about.com/od/physicsbooks/gr/impossphysics.htm</link>
         <description><![CDATA[In this book, physicist and popular author Dr. Michio Kaku explores what physics really has to say about &quot;impossible&quot; concepts such as teleportation, invisibility, telepathy, starships, and perpetual motion machines.  Kaku classifies these and other concepts by their level of impossibility and describes the significant scientific principles at work in trying to unlock the secrets of them.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsbooks/gr/impossphysics.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Dimensional Analysis]]></title>
         <link>http://physics.about.com/od/classroomphysics/qt/quickunits.htm</link>
         <description><![CDATA[Dimensional analysis is a process by which you can use the units of certain values to help figure out how to achieve the solution you need.  Learn how to use dimensional analysis to help you solve physics problems.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/classroomphysics/qt/quickunits.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Isothermal Process]]></title>
         <link>http://physics.about.com/od/glossary/g/isothermal.htm</link>
         <description><![CDATA[definition of an isothermal process]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/isothermal.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Hawking Radiation]]></title>
         <link>http://physics.about.com/od/astronomy/f/hawkrad.htm</link>
         <description><![CDATA[Hawking radiation is an explanation of how radiation can be emitted from a black hole, despite its attractive power, due to quantum effects.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/astronomy/f/hawkrad.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Bose-Einstein Condensate]]></title>
         <link>http://physics.about.com/od/glossary/g/boseeinstcond.htm</link>
         <description><![CDATA[Definition of the Bose-Einstein condensate.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/boseeinstcond.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Absolute Zero]]></title>
         <link>http://physics.about.com/od/glossary/g/absolutezero.htm</link>
         <description><![CDATA[definition of absolute zero]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/absolutezero.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Momentum]]></title>
         <link>http://physics.about.com/od/glossary/g/momentum.htm</link>
         <description><![CDATA[Definition of momentum]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/momentum.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Doppler Radar]]></title>
         <link>http://physics.about.com/od/physicsintherealworld/f/dopplerradar.htm</link>
         <description><![CDATA[A description of the physical principle behind Doppler radar.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsintherealworld/f/dopplerradar.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Dark Matter]]></title>
         <link>http://physics.about.com/od/glossary/g/darkmatter.htm</link>
         <description><![CDATA[Definition of dark matter.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/darkmatter.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Quark]]></title>
         <link>http://physics.about.com/od/glossary/g/quark.htm</link>
         <description><![CDATA[definition of quark, one of the fundamental particles in physics. Quarks compose protons and neutrons.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/quark.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Cosmic Ray Detector]]></title>
         <link>http://physics.about.com/od/physicsexperiments/ss/cosraydetect.htm</link>
         <description><![CDATA[We teach you how to build your own cosmic ray detector.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsexperiments/ss/cosraydetect.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics Myths]]></title>
         <link>http://physics.about.com/od/physicsmyths/tp/physicsmyths.htm</link>
         <description><![CDATA[A list of popular physics myths.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsmyths/tp/physicsmyths.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Electronics Overview]]></title>
         <link>http://physics.about.com/od/electromagnetics/p/electronics.htm</link>
         <description><![CDATA[Profile of the field of electronics]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/electromagnetics/p/electronics.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Photometry]]></title>
         <link>http://physics.about.com/od/glossary/g/photometry.htm</link>
         <description><![CDATA[definition of photometry]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/photometry.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Induction]]></title>
         <link>http://physics.about.com/od/physicsetoh/g/induction.htm</link>
         <description><![CDATA[definition of electromagnetic induction]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsetoh/g/induction.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Quantum Computer]]></title>
         <link>http://physics.about.com/od/quantumphysics/f/quantumcomp.htm</link>
         <description><![CDATA[Quantum physics allows for many wondrous things, but perhaps none will have more impact than quantum computing ... if anyone ever builds a quantum computer that works (for more than a few nanoseconds).]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/f/quantumcomp.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Electron]]></title>
         <link>http://physics.about.com/od/glossary/g/electron.htm</link>
         <description><![CDATA[definition of electron - electron as a fundamental physics particle]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/electron.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Condensation]]></title>
         <link>http://physics.about.com/od/glossary/g/condensation.htm</link>
         <description><![CDATA[definition of condensation]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/condensation.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Ice Diet]]></title>
         <link>http://physics.about.com/od/physicsmyths/f/icediet.htm</link>
         <description><![CDATA[Does the Ice Diet work?  Find out the reasons why the ice diet, which is based on calories burned by warming water, doesn't actually work the way so many think it should.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsmyths/f/icediet.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Buoyancy]]></title>
         <link>http://physics.about.com/od/glossary/g/buoyancy.htm</link>
         <description><![CDATA[Definition of Buoyancy]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/buoyancy.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[specific gravity]]></title>
         <link>http://physics.about.com/od/glossary/g/specgravity.htm</link>
         <description><![CDATA[Definition of specific gravity]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/specgravity.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[A photograph of Albert Einstein riding his bicycle in Santa Barbara.]]></title>
         <link>http://physics.about.com/od/alberteinstein/ig/Albert-Einstein-photos/Einstein-on-a-bike.htm</link>
         <description><![CDATA[A photograph of Albert Einstein riding his bicycle in Santa Barbara.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/alberteinstein/ig/Albert-Einstein-photos/Einstein-on-a-bike.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Dark Energy]]></title>
         <link>http://physics.about.com/od/glossary/g/darkenergy.htm</link>
         <description><![CDATA[Definition of dark energy]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/darkenergy.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Proton]]></title>
         <link>http://physics.about.com/od/glossary/g/proton.htm</link>
         <description><![CDATA[Definition of a proton]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/proton.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Spectroscopy]]></title>
         <link>http://physics.about.com/od/glossary/g/spectroscopy.htm</link>
         <description><![CDATA[Definition of spectroscopy]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/spectroscopy.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Isobaric Process]]></title>
         <link>http://physics.about.com/od/glossary/g/isobaric.htm</link>
         <description><![CDATA[definition of an isobaric process]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/isobaric.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Kepler&#039;s Laws]]></title>
         <link>http://physics.about.com/od/astronomy/p/keplerlaws.htm</link>
         <description><![CDATA[Kepler's Laws describe, in three concise rules, the motion of orbital bodies in the solar system.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/astronomy/p/keplerlaws.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Nuclear Fission]]></title>
         <link>http://physics.about.com/od/glossary/g/nuclearfission.htm</link>
         <description><![CDATA[Definition of nuclear fission]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/nuclearfission.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Impulse]]></title>
         <link>http://physics.about.com/od/glossary/g/Impulse.htm</link>
         <description><![CDATA[Definition of impulse]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/Impulse.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[De Broglie Hypothesis]]></title>
         <link>http://physics.about.com/od/quantumphysics/a/dbhypothesis.htm</link>
         <description><![CDATA[We discuss the De Broglie hypothesis, which proposes that all matter exhibits wave-like properties and relates the observed wavelength of matter to its momentum.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/a/dbhypothesis.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Quantum Physics Books]]></title>
         <link>http://physics.about.com/od/quantumphysicsbooks/tp/quantumbooks.htm</link>
         <description><![CDATA[A list of books about quantum physics.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysicsbooks/tp/quantumbooks.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Nanotechnology]]></title>
         <link>http://physics.about.com/od/nanotechnology/p/nanotechnology.htm</link>
         <description><![CDATA[Nanotechnology is a growing, dynamic field of research involving tiny nanoparticles, which are much smaller in width than a human hair.  Here you'll learn the definition of nanotechnology, as well as some of its history.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/nanotechnology/p/nanotechnology.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Superfluid]]></title>
         <link>http://physics.about.com/od/glossary/g/superfluid.htm</link>
         <description><![CDATA[Definition of a superfluid]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/superfluid.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Phase Diagram]]></title>
         <link>http://physics.about.com/od/glossary/g/phasediagram.htm</link>
         <description><![CDATA[definition of phase diagram]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/phasediagram.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Biophysics]]></title>
         <link>http://physics.about.com/od/biophysics/p/biophysics.htm</link>
         <description><![CDATA[A description of the essential details of biophysics.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/biophysics/p/biophysics.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[General Physics References]]></title>
         <link>http://physics.about.com/od/physicsbooks/tp/genrefbooks.htm</link>
         <description><![CDATA[A list of books that cover a wide range of basic physics concepts, useful for helping to understand the fundamentals of an introductory physics course.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsbooks/tp/genrefbooks.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Neutron]]></title>
         <link>http://physics.about.com/od/glossary/g/neutron.htm</link>
         <description><![CDATA[definition of a neutron]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/neutron.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics Movie List]]></title>
         <link>http://physics.about.com/od/physicsfilmsmovies/tp/physicsmovies.htm</link>
         <description><![CDATA[A list of films which prominently feature physics or physicists, generally in an inspiring (and entertaining) way.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsfilmsmovies/tp/physicsmovies.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Fundamental Physical Constants]]></title>
         <link>http://physics.about.com/od/toolsofthetrade/a/constants1.htm</link>
         <description><![CDATA[A list of the fundamental physical constants used in physics problems.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/toolsofthetrade/a/constants1.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Pressure]]></title>
         <link>http://physics.about.com/od/glossary/g/pressure.htm</link>
         <description><![CDATA[Definition of pressure]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/pressure.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics - Articles]]></title>
         <link>http://physics.about.com/cs/a.htm</link>
         <description><![CDATA[An index of articles for the Physics guide site.]]></description>
         <guid isPermaLink="true">http://physics.about.com/cs/a.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Albert Einstein Books]]></title>
         <link>http://physics.about.com/od/alberteinstein/tp/einsteinbooks.htm</link>
         <description><![CDATA[A list of diverse books that focus on Albert Einstein's life and work.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/alberteinstein/tp/einsteinbooks.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Large Hadron Collider]]></title>
         <link>http://physics.about.com/od/particleaccelerators/a/largehadron.htm</link>
         <description><![CDATA[In 2008, the Large Hadron Collider goes online as the world's largest, most powerful particle accelerator.  It seeks to discover the mysteries of the universe by smashing together particles.  ]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/particleaccelerators/a/largehadron.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Know Your Variables]]></title>
         <link>http://physics.about.com/od/classroomphysics/qt/variables.htm</link>
         <description><![CDATA[When starting on a physics problem, it's important to know how to set up the problem in mathematical terms quickly.  Having a good handle your variables will save a lot of confusion.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/classroomphysics/qt/variables.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Earth Science: An Overview]]></title>
         <link>http://physics.about.com/od/earthsciencesgeosciences/p/geoscience.htm</link>
         <description><![CDATA[The Earth sciences is the study of physical interactions of matter and energy on the Earth.  ]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/earthsciencesgeosciences/p/geoscience.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Stephen Hawking]]></title>
         <link>http://physics.about.com/od/stephenhawking/p/hawking.htm</link>
         <description><![CDATA[Physicist and cosmologist Stephen Hawking is probably one of the most popular modern physicists, mostly because of his popular bestselling book describing the state of cosmology and astrophysics and appearances on popular entertainment shows ... oh, and Hawking's quite a bright physicist who has revolutionized our understanding of black holes.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/stephenhawking/p/hawking.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Torque]]></title>
         <link>http://physics.about.com/od/glossary/g/torque.htm</link>
         <description><![CDATA[Definition of torque]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/torque.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Van der Waals&#039; Forces]]></title>
         <link>http://physics.about.com/od/glossary/g/vdwaalsforce.htm</link>
         <description><![CDATA[A description of the Van der Waals' Forces that create weak intermolecular interactions.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/vdwaalsforce.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Nuclear Fusion]]></title>
         <link>http://physics.about.com/od/glossary/g/nuclearfusion.htm</link>
         <description><![CDATA[Definition of nuclear fusion]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/nuclearfusion.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Vaporization]]></title>
         <link>http://physics.about.com/od/glossary/g/vaporization.htm</link>
         <description><![CDATA[definition of vaporization]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/vaporization.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Many Worlds Interpretation]]></title>
         <link>http://physics.about.com/od/quantumphysics/f/manyworldsinterpretation.htm</link>
         <description><![CDATA[One of the most intriguing concepts in physics is the many worlds interpretation of quantum physics, which proposes that each possible outcome for any event takes place in an ever-branching series of realities.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/f/manyworldsinterpretation.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Isochoric Process]]></title>
         <link>http://physics.about.com/od/glossary/g/isochoric.htm</link>
         <description><![CDATA[definition of an isochoric process]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/isochoric.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[A Briefer History of Time]]></title>
         <link>http://physics.about.com/od/physicsbooks/gr/brieferhistory.htm</link>
         <description><![CDATA[In this revision of his 1988 classic, Dr. Stephen Hawking provides a more concise view of the current state of theoretical physics and cosmology.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsbooks/gr/brieferhistory.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Sources of Power Production]]></title>
         <link>http://physics.about.com/od/energyresources/p/powersources.htm</link>
         <description><![CDATA[We use energy, be it kinetic, thermal, or electrical, in every aspect of our lives.  Except for the actual movement of our bodies (which is fuelled with food), this energy generally comes from some external source that we have no direct contact with.  Here is a list of the various places we get energy in our modern world of industry &amp; technology.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/energyresources/p/powersources.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Michio Kaku]]></title>
         <link>http://physics.about.com/od/michiokaku/p/michiokakubio.htm</link>
         <description><![CDATA[Physicist &amp; science popularizer Michio Kaku is a known face from television and voice from radio, where he presents physics concepts to a broad lay audience.  ]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/michiokaku/p/michiokakubio.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Niels Bohr]]></title>
         <link>http://physics.about.com/od/nielsbohr/p/bohr1.htm</link>
         <description><![CDATA[Information about the physicist Niels Bohr, who was key in the development of quantum physics.  Bohr devised the simplified Bohr model of the hydrogen atom.  He was central to the development of the Copenhagen interpretation of quantum physics.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/nielsbohr/p/bohr1.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Oscillation]]></title>
         <link>http://physics.about.com/od/glossary/g/oscillation.htm</link>
         <description><![CDATA[Definition of oscillation]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/oscillation.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Richard P. Feynman]]></title>
         <link>http://physics.about.com/od/richardpfeynman/p/Feynman1.htm</link>
         <description><![CDATA[An overview of general information about physicist Richard P. Feynman.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/richardpfeynman/p/Feynman1.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Sir Isaac Newton]]></title>
         <link>http://physics.about.com/od/sirisaacnewton/p/newton.htm</link>
         <description><![CDATA[Sir Isaac Newton is one of the most significant physicists in western history.  Considered the founder of classical physics, he took the disparate concepts that existed at his time and brought them together into a cohesive field of study.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/sirisaacnewton/p/newton.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Idealized Models]]></title>
         <link>http://physics.about.com/od/toolsofthetrade/qt/idealmodels.htm</link>
         <description><![CDATA[Physicists generally break problems down into idealized models, which are simplified versions of the problems that look only at the elements they need to look at.  This primer will give you tips on how to use such models properly]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/toolsofthetrade/qt/idealmodels.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics Toys &amp; Games]]></title>
         <link>http://physics.about.com/od/physicstoysgames/tp/PhysicsToys.htm</link>
         <description><![CDATA[A variety of physics toys &amp; games, many of which have educational uses.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicstoysgames/tp/PhysicsToys.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[What is Quantum Optics?]]></title>
         <link>http://physics.about.com/od/quantumphysics/f/quantumoptics.htm</link>
         <description><![CDATA[Learn about quantum optics, the field of physics where the study of individual photons is crucial to understanding the nature of the behavior of electromagnetic waves as a whole.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/f/quantumoptics.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Loop Quantum Gravity]]></title>
         <link>http://physics.about.com/od/unifiedfieldtheories/f/loopquantgrav.htm</link>
         <description><![CDATA[Loop quantum gravity explains the universe in terms of tangles in spacetime.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/unifiedfieldtheories/f/loopquantgrav.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Doppler Effect]]></title>
         <link>http://physics.about.com/od/wavessound/a/dopplereffect.htm</link>
         <description><![CDATA[The Doppler effect takes place when source or observer of waves (generally sound) are moving, creating an alteration in the perceived frequency.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/wavessound/a/dopplereffect.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Surely You&#039;re Joking, Mr. F]]></title>
         <link>http://physics.about.com/od/richardpfeynman/gr/surelyjoking.htm</link>
         <description><![CDATA[This autobiographical collection of tales relate classic &quot;Feynman stories&quot; from his youth through his rise into the realm of physics legend.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/richardpfeynman/gr/surelyjoking.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Wormhole]]></title>
         <link>http://physics.about.com/od/glossary/g/wormhole.htm</link>
         <description><![CDATA[definition of a wormhole]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/wormhole.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Quantum Enigma]]></title>
         <link>http://physics.about.com/od/quantumphysics/gr/QuantumEnigma.htm</link>
         <description><![CDATA[In <i><b>Quantum Enigma: Physics Encounters Consciousness</b></i>, two physics professors explore the &quot;skeleton in the closet&quot; of quantum physics.  What is the role of the observer, a conscious observer, in quantum theory?  In lucid terms, the authors outline the issues and debates surrounding the quantum enigma.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/quantumphysics/gr/QuantumEnigma.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[I.Q.]]></title>
         <link>http://physics.about.com/od/physicsfilmsmovies/gr/iqmovie.htm</link>
         <description><![CDATA[A review of the romantic comedy I.Q. starring Tim Robbins, Meg Ryan, and Walter Matthau as Albert Einstein.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsfilmsmovies/gr/iqmovie.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Graphene]]></title>
         <link>http://physics.about.com/od/glossary/g/graphene.htm</link>
         <description><![CDATA[definition of graphene]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/graphene.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[A picture of Albert Einstein from 1905]]></title>
         <link>http://physics.about.com/od/alberteinstein/ig/Albert-Einstein-photos/Albert-Einstein---1905.htm</link>
         <description><![CDATA[Photographs of Albert Einstein.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/alberteinstein/ig/Albert-Einstein-photos/Albert-Einstein---1905.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[The Physics of Christianity]]></title>
         <link>http://physics.about.com/od/physicsbooks/gr/PhysChrist.htm</link>
         <description><![CDATA[A review of The Physics of Christianity by controversial Tulane University physicist Frank J. Tipler.  In this book, Tipler outlines an interpretation of quantum physics which could theoretically be consistent with a literal interpretation of Christian doctrine, and would explain everything from the virgin birth to the existence of miracles, and the ultimate goal of mankind.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsbooks/gr/PhysChrist.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Phonon]]></title>
         <link>http://physics.about.com/od/physicsmtop/g/phonon.htm</link>
         <description><![CDATA[Definition of a phonon. A phonon is a quantized vibration, so it's sort of a quanta, or particle, of sound, used to describe acoustics in quantum mechanical form. A phonon is the sound analog to the photon.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsmtop/g/phonon.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Grand Ideas of Science]]></title>
         <link>http://physics.about.com/od/physics101thebasics/tp/grandideas.htm</link>
         <description><![CDATA[In his 2007 book, Why Science?, James Trefil outlines a number of topics, &quot;Grand Ideas&quot; of science he calls them, which form a basis of scientific literacy.  In other words, these are the topics that Trefil believes everyone must know to be able to intelligently function in society on issues where science is involved.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physics101thebasics/tp/grandideas.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[What Do You Care ...?]]></title>
         <link>http://physics.about.com/od/richardpfeynman/gr/WhatDoYouCare.htm</link>
         <description><![CDATA[In this book, physicist Richard P. Feynman discusses the forces that helped to mold him - his relationship with his father and his first love, Arline. The book also relates his involvement in the <i>Challenger</i> investigation during the mid-1980s.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/richardpfeynman/gr/WhatDoYouCare.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Oath of the Scientist]]></title>
         <link>http://physics.about.com/od/ethicalscience/f/oathscientist.htm</link>
         <description><![CDATA[The Oath of the Scientist is an oath in the young adult series of novels written by Lucy and Stephen Hawking, intended to explain the key ideas of physics to young readers. The Oath of the Scientist helps also explain the ethical obligations of scientists.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/ethicalscience/f/oathscientist.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Game of Knowledge]]></title>
         <link>http://physics.about.com/od/physicsfun/gr/gameknowledge.htm</link>
         <description><![CDATA[An educational trivia game where children can play against grown-ups on equal footing.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsfun/gr/gameknowledge.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Brainteaser Physics review]]></title>
         <link>http://physics.about.com/od/physicsbooks/gr/brainteasphysic.htm</link>
         <description><![CDATA[A review of Brainteaser Physics: Challenging Physics Puzzlers by Goran Grimvall.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsbooks/gr/brainteasphysic.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Electric Universe]]></title>
         <link>http://physics.about.com/od/physicsbooks/gr/elecuniverse.htm</link>
         <description><![CDATA[Your faithful Physics Guide reviews the book <b><i>Electric Universe: The Shocking True Story of Electricity</i></b> by David Bodanis, winner of the Royal Society's 2006 Aventis prize for best popular science book.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsbooks/gr/elecuniverse.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[CMB Radiation]]></title>
         <link>http://physics.about.com/od/glossary/g/cmbrad.htm</link>
         <description><![CDATA[a definition of cosmic microwave background radiation]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/cmbrad.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Quantum Parallelism]]></title>
         <link>http://physics.about.com/od/physicsqtot/g/quantumparallel.htm</link>
         <description><![CDATA[definition of quantum parallelism]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsqtot/g/quantumparallel.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Movie Physics Books]]></title>
         <link>http://physics.about.com/od/physicsbooks/tp/movietvphys.htm</link>
         <description><![CDATA[Books that cover the physics in movies and television shows, and how it does (or does not) relate to real physics.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsbooks/tp/movietvphys.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Endless Universe]]></title>
         <link>http://physics.about.com/od/physicsbooks/gr/endlessuniverse.htm</link>
         <description><![CDATA[Steinhardt &amp; Turok present a revolutionary new model of cosmology which removes the need for the inflationary phase in the Big Bang.  Using concepts from string theory, they present a new cyclic model in which the laws of physics do not break down at the moment of the universe's creation.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsbooks/gr/endlessuniverse.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Parallel Worlds, Parallel Live]]></title>
         <link>http://physics.about.com/od/physicsfilmsmovies/gr/parallelworldslives.htm</link>
         <description><![CDATA[The documentary Parallel Worlds, Parallel Lives covers the history and formulation of the many world interpretation of quantum physics, as the creator's son searches to learn more about his father's life and work.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsfilmsmovies/gr/parallelworldslives.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Science of Harry Potter]]></title>
         <link>http://physics.about.com/od/physicsbooks/gr/sciharrypotter.htm</link>
         <description><![CDATA[In his book, The Science of Harry Potter, Roger Highfield addresses a wide range of scientific principles through the prism of J.K. Rowling's The Boy Who Lived.  From anti-gravity broomsticks to the mutations that could create Skrewts, Highfield presents an amusing, entertaining, and educational account of Muggle &quot;magick&quot; - science.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsbooks/gr/sciharrypotter.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Astrometry]]></title>
         <link>http://physics.about.com/od/physicsatod/g/Astrometry.htm</link>
         <description><![CDATA[definition of astrometry]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsatod/g/Astrometry.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Cathode Ray]]></title>
         <link>http://physics.about.com/od/glossary/g/cathoderay.htm</link>
         <description><![CDATA[definition of a cathode ray]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/cathoderay.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Quasar]]></title>
         <link>http://physics.about.com/od/glossary/g/quasar.htm</link>
         <description><![CDATA[Definition of quasar. A quasar is an astronomical object that emits massive amounts of electromagnetic radiation.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/quasar.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics Blogs]]></title>
         <link>http://physics.about.com/od/physics101thebasics/tp/physicsblogs.htm</link>
         <description><![CDATA[Some scientists and commentators have taken to the blogosphere to write blogs about physics. Here is a list of some of the most prominent physics blogs.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Quantum Information Theory]]></title>
         <link>http://physics.about.com/od/physicsqtot/g/quantinfotheory.htm</link>
         <description><![CDATA[definition of quantum information theory]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsqtot/g/quantinfotheory.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Positron]]></title>
         <link>http://physics.about.com/od/glossary/g/positron.htm</link>
         <description><![CDATA[definition of positron]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/positron.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Graviton]]></title>
         <link>http://physics.about.com/od/glossary/g/graviton.htm</link>
         <description><![CDATA[Definition of graviton]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/graviton.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Particle Accelerator]]></title>
         <link>http://physics.about.com/od/physicsmtop/g/particleaccel.htm</link>
         <description><![CDATA[definition of a particle accelerator]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsmtop/g/particleaccel.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[The Trouble with Physics]]></title>
         <link>http://physics.about.com/od/stringtheorybooks/gr/troublephysics.htm</link>
         <description><![CDATA[In this controversial book, theoretical physicist Lee Smolin critically addresses the prominence of string theory within the theoretical physics community ... and why more ideas need to be equally pursued.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/stringtheorybooks/gr/troublephysics.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Quantum Physics and Theology]]></title>
         <link>http://physics.about.com/od/physicsbooks/gr/quanphystheol.htm</link>
         <description><![CDATA[In this book, physicist and Anglican priest John Polkinghorne explores the similar methods used by science to inquire about quantum physics and theologians to inquire about Christ's life. An intriguing look into the mind of a thoughtful scientist and Christian.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsbooks/gr/quanphystheol.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Many Worlds in One]]></title>
         <link>http://physics.about.com/od/physicsbooks/gr/manyworldsinone.htm</link>
         <description><![CDATA[In <i>Many Worlds in One: The Search for Other Universes</i>, cosmologist Alex Vilenkin explores how the recent findings of cosmology are leading him and others toward a startling new view of the multiverse, in which many universes co-exist together, possibly governed by different scientific laws.]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsbooks/gr/manyworldsinone.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Einstein&#039;s Big Idea]]></title>
         <link>http://physics.about.com/od/alberteinstein/gr/einsteinbigidea.htm</link>
         <description><![CDATA[This PBS Nova 2-hour special episode provides a narrative of how Albert Einstein developed his famous equation, E=mc[sup]2[/sup], from the origins of energy to Einstein's brilliant insight.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Neutrino]]></title>
         <link>http://physics.about.com/od/glossary/g/neutrino.htm</link>
         <description><![CDATA[definition of a neutrino]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Qubit]]></title>
         <link>http://physics.about.com/od/glossary/g/qubit.htm</link>
         <description><![CDATA[definition of a qubit]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Superconductor]]></title>
         <link>http://physics.about.com/od/glossary/g/superconductor.htm</link>
         <description><![CDATA[definition of a superconductor]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Closed timelike curve]]></title>
         <link>http://physics.about.com/od/physicsatod/g/closedtimelikecurve.htm</link>
         <description><![CDATA[Definition of a closed timelike curve and how closed timelike curves can be used in relativity for the purposes of time travel.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
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         <item>
         <title><![CDATA[Hiding in the Mirror]]></title>
         <link>http://physics.about.com/od/stringtheorybooks/gr/hidingmirror.htm</link>
         <description><![CDATA[In Hiding in the Mirror, physicist Lawrence M. Krauss explores extra dimensions in both theoretical physics and popular culture.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
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         <item>
         <title><![CDATA[Spacetime]]></title>
         <link>http://physics.about.com/od/physicsqtot/g/spacetime.htm</link>
         <description><![CDATA[definition of spacetime]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/physicsqtot/g/spacetime.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Programming the Universe]]></title>
         <link>http://physics.about.com/od/physicsbooks/gr/proguniverse.htm</link>
         <description><![CDATA[In his book, Programming the Universe: A Quantum Computer Scientist Takes on the Cosmos, MIT physicist and engineer Seth Lloyd explains not only quantum computing, but also the entire field of quantum information theory - the idea that the universe itself acts like a giant quantum computer.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics Gift Guide]]></title>
         <link>http://physics.about.com/od/physicsfun/p/physicsgifts.htm</link>
         <description><![CDATA[A guide to various physics-related gifts, from books and DVDs to toys and games.  Find anything for your science geek friends!]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Magtastik building toys]]></title>
         <link>http://physics.about.com/od/physicstoysgames/gr/magtastiks.htm</link>
         <description><![CDATA[Magtastik is a magnet-based building system composed of metallic balls and magnetic connector pieces.  The pieces are similar to those of the Magnetix line of building toys, but larger, so that they are safe for use by preschool-age children.  Find out more about this fun and intriguing line of toys.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
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         <item>
         <title><![CDATA[Event horizon]]></title>
         <link>http://physics.about.com/od/physicsetoh/g/eventhorizon.htm</link>
         <description><![CDATA[Definition of an event horizon. An event horizon is the edge of a black hole, the boundary from which no light can escape.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Physics - QuickTips]]></title>
         <link>http://physics.about.com/cs/qt.htm</link>
         <description><![CDATA[An index of QuickTips for the Physics guide site.]]></description>
         <guid isPermaLink="true">http://physics.about.com/cs/qt.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
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         <item>
         <title><![CDATA[Up Quark]]></title>
         <link>http://physics.about.com/od/glossary/g/upquark.htm</link>
         <description><![CDATA[Definition of Up Quark]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/upquark.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Albert Einstein Edu-Manga]]></title>
         <link>http://physics.about.com/od/alberteinstein/gr/einsteinmanga.htm</link>
         <description><![CDATA[A biography of Albert Einstein written in the Japanese comic style of manga.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Turkey Physics]]></title>
         <link>http://physics.about.com/od/physicsintherealworld/p/TurkeyPhysics.htm</link>
         <description><![CDATA[Learn about how physics relates to the cooking of a turkey.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Why Science? by James Trefil]]></title>
         <link>http://physics.about.com/od/physicsbooks/gr/whyscience.htm</link>
         <description><![CDATA[In this book, James Trefil - co-author of the <i>Dictionary of Cultural Literacy</i> - makes a strong case for the need for scientific literacy in American society (and indeed in all societies).  At the same time, he puts this need in perspective, making clear parameters about what everyone needs to know, as opposed to turning everyone into miniature scientists.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Magnetar]]></title>
         <link>http://physics.about.com/od/glossary/g/magnetar.htm</link>
         <description><![CDATA[definition of a magnetar]]></description>
         <guid isPermaLink="true">http://physics.about.com/od/glossary/g/magnetar.htm</guid>
         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
         </item>
         
         <item>
         <title><![CDATA[Higgs Boson]]></title>
         <link>http://physics.about.com/od/glossary/g/HiggsBoson.htm</link>
         <description><![CDATA[definition of a Higgs Boson]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-07-04T10:52:51Z</dc:date>
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