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   <title>About.com Physics: What's Hot Now</title>
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   <description>These articles that had the largest increase in popularity over the last week</description>
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   <dc:date>2009-11-08T10:23:14Z</dc:date>

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         <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>
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         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <title><![CDATA[Isochoric Process]]></title>
         <link>http://physics.about.com/od/glossary/g/isochoric.htm</link>
         <description><![CDATA[definition of an isochoric process]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <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>2009-11-08T10:23:14Z</dc:date>
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         <title><![CDATA[Cosmic Ray Detector]]></title>
         <link>http://physics.about.com/od/physicsexperiments/ss/cosraydetect_2.htm</link>
         <description><![CDATA[We teach you how to build your own cosmic ray detector.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <title><![CDATA[Dark Matter]]></title>
         <link>http://physics.about.com/od/glossary/g/darkmatter.htm</link>
         <description><![CDATA[Definition of dark matter.]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</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>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <title><![CDATA[Phase Diagram]]></title>
         <link>http://physics.about.com/od/glossary/g/phasediagram.htm</link>
         <description><![CDATA[definition of phase diagram]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <title><![CDATA[Blackbody Radiation]]></title>
         <link>http://physics.about.com/od/quantumphysics/a/blackbody_2.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>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <title><![CDATA[Vector Mathematics]]></title>
         <link>http://physics.about.com/od/mathematics/a/VectorMath_5.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>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <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>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <title><![CDATA[Nuclear Fission]]></title>
         <link>http://physics.about.com/od/glossary/g/nuclearfission.htm</link>
         <description><![CDATA[Definition of nuclear fission]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <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>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <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>
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         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <title><![CDATA[Speed]]></title>
         <link>http://physics.about.com/od/glossary/g/speed.htm</link>
         <description><![CDATA[Definition of speed]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <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>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <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>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <title><![CDATA[Isobaric Process]]></title>
         <link>http://physics.about.com/od/glossary/g/isobaric.htm</link>
         <description><![CDATA[definition of an isobaric process]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <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>
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         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <title><![CDATA[Isothermal Process]]></title>
         <link>http://physics.about.com/od/glossary/g/isothermal.htm</link>
         <description><![CDATA[definition of an isothermal process]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <item>
         <title><![CDATA[Inertia]]></title>
         <link>http://physics.about.com/od/glossary/g/inertia.htm</link>
         <description><![CDATA[Definition of inertia]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</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>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <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:date>2009-11-08T10:23:14Z</dc:date>
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         <item>
         <title><![CDATA[Momentum]]></title>
         <link>http://physics.about.com/od/glossary/g/momentum.htm</link>
         <description><![CDATA[Definition of momentum]]></description>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <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>
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         <dc:subject>education</dc:subject>
         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <title><![CDATA[Surface Tension]]></title>
         <link>http://physics.about.com/od/physicsexperiments/a/surfacetension_3.htm</link>
         <description><![CDATA[Against the surface of a vertical tube, Capillarity is an effect when liquid in a narrow vertical tube becomes elevated or depressed as a result of the surface tension and pressures involved.]]></description>
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         <dc:date>2009-11-08T10:23:14Z</dc:date>
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         <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>
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         <dc:date>2009-11-08T10:23:14Z</dc:date>
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