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				<title>Featured Spacetime Emporium Materials</title>
				<link>http://www.compadre.org/relativity/</link>
				<description>Spacetime Emporium's Featured Spacetime Emporium Materials</description>
				<language>en-US</language>
				<copyright>Copyright 2013, ComPADRE.org</copyright>
				<managingEditor>relativity@compadre.org (Managing Editor)</managingEditor>
				<lastBuildDate>Thu, 20 Jun 2013 01:11:26 EST</lastBuildDate>
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						<title>Scienceface.org</title>
						<description>A collection of 15 minute interviews of research scientists studying black holes.</description>
						
							<link>http://www.compadre.org/relativity/items/detail.cfm?ID=9026</link>
						
						
							<guid>http://www.scienceface.org</guid>
							<comments>http://www.compadre.org/relativity/bulletinboard/Thread.cfm?ID=9026</comments>
						
						<pubDate>Thu, 01 Nov 2012 00:00:00 EST</pubDate>
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						<title>Spacetime 101</title>
						<description>This web site provides short and simple illustrated descriptions of relativity concepts, from ancient Greeks to General Relativity.</description>
						
							<link>http://www.compadre.org/relativity/items/detail.cfm?ID=1820</link>
						
						
							<guid>http://www.theory.caltech.edu/people/patricia/st101.html</guid>
							<comments>http://www.compadre.org/relativity/bulletinboard/Thread.cfm?ID=1820</comments>
						
						<pubDate>Mon, 03 Sep 2012 00:00:00 EST</pubDate>
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						<title>Relativity Metric Program</title>
						<description>The Relativity Metric program displays the effect of relative motion on the spatial and temporal separation of events in special relativity. The events, with adjustable separations in time and space, are shown in two different reference frames.</description>
						
							<link>http://www.compadre.org/relativity/items/detail.cfm?ID=7236</link>
						
						
							<guid>http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7236&amp;DocID=409</guid>
							<comments>http://www.compadre.org/relativity/bulletinboard/Thread.cfm?ID=7236</comments>
						
						<pubDate>Wed, 20 Jun 2012 00:00:00 EST</pubDate>
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						<title>Ejs Simultaneity Model</title>
						<description>This EJS program displays the effect of relative motion of observers on the relative ordering of events.  The wave source and two equidistant detectors are at rest in reference frame S&apos;, which moves with constant velocity, v, in frame S.  </description>
						
							<link>http://www.compadre.org/relativity/items/detail.cfm?ID=7899</link>
						
						
							<guid>http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7899&amp;DocID=675</guid>
							<comments>http://www.compadre.org/relativity/bulletinboard/Thread.cfm?ID=7899</comments>
						
						<pubDate>Fri, 15 Jun 2012 00:00:00 EST</pubDate>
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						<title>On the Electrodynamics of Moving Bodies</title>
						<description>This is an English translation of the 1905 paper by Albert Einstein on Special Relativity. Additional resources on special and general relativity are attached.</description>
						
							<link>http://www.compadre.org/relativity/items/detail.cfm?ID=2145</link>
						
						
							<guid>http://www.fourmilab.ch/etexts/einstein/specrel/www/</guid>
							<comments>http://www.compadre.org/relativity/bulletinboard/Thread.cfm?ID=2145</comments>
						
						<pubDate>Tue, 29 Jun 2010 00:00:00 EST</pubDate>
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						<title>GR Schwarzschild Light Program</title>
						<description>The GR Schwarzschild Light program simulates the path of light around a black hole using the Schwarzschild metric.  It also displays a plot of the effective potential of light in the vicinity of a black hole. The default setting is a light trajectory that escapes the black hole.</description>
						
							<link>http://www.compadre.org/relativity/items/detail.cfm?ID=7226</link>
						
						
							<guid>http://www.compadre.org/Repository/document/ServeFile.cfm?ID=7226&amp;DocID=385</guid>
							<comments>http://www.compadre.org/relativity/bulletinboard/Thread.cfm?ID=7226</comments>
						
						<pubDate>Fri, 02 Apr 2010 00:00:00 EST</pubDate>
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						<title>LIGO: Laser Interferometer Gravitational Wave Observatory</title>
						<description>LIGO is hoping to achieve the first direct detection of gravitational waves.  They are ripples of spactime curvature, propagating at the same speed as light, and are a key prediction of General Relativity.</description>
						
							<link>http://www.compadre.org/relativity/items/detail.cfm?ID=7511</link>
						
						
							<guid>http://www.ligo.caltech.edu/</guid>
							<comments>http://www.compadre.org/relativity/bulletinboard/Thread.cfm?ID=7511</comments>
						
						<pubDate>Thu, 01 Apr 2010 00:00:00 EST</pubDate>
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