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	<title>The Why Files &#187; Motions and forces</title>
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	<description>The Science Behind The News</description>
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		<title>Pop goes the super supernova</title>
		<link>http://whyfiles.org/2009/pop-goes-the-super-supernova/</link>
		<comments>http://whyfiles.org/2009/pop-goes-the-super-supernova/#comments</comments>
		<pubDate>Thu, 03 Dec 2009 19:17:30 +0000</pubDate>
		<dc:creator>svmedaristwf</dc:creator>
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		<category><![CDATA[Conservation of energy and increase in disorder]]></category>
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		<category><![CDATA[Grades 5-8]]></category>
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		<category><![CDATA[Motions and forces]]></category>
		<category><![CDATA[Origin and evolution of the earth system]]></category>
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		<category><![CDATA[ancient universe]]></category>
		<category><![CDATA[astronomy]]></category>
		<category><![CDATA[astrophysics]]></category>
		<category><![CDATA[Avishay Gal-Yam]]></category>
		<category><![CDATA[electron-positron pair]]></category>
		<category><![CDATA[heavy element production]]></category>
		<category><![CDATA[pair instability]]></category>
		<category><![CDATA[supernova 2007bi]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=3778</guid>
		<description><![CDATA[Titanic explosion shows one of the biggest bangs since the Biggest Bang, spreads useful elements through the universe. Finally revealed: anti-matter is working for you!]]></description>
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		<title>Electric eye learns from animal eye!</title>
		<link>http://whyfiles.org/2008/electric-eye-learns-from-animal-eye/</link>
		<comments>http://whyfiles.org/2008/electric-eye-learns-from-animal-eye/#comments</comments>
		<pubDate>Thu, 07 Aug 2008 20:39:47 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Structure and function in living systems]]></category>
		<category><![CDATA[Technology]]></category>
		<category><![CDATA[Understandings about science and technology]]></category>
		<category><![CDATA[back of camera]]></category>
		<category><![CDATA[camera]]></category>
		<category><![CDATA[curved light detector]]></category>
		<category><![CDATA[distortion]]></category>
		<category><![CDATA[flexible electronics]]></category>
		<category><![CDATA[hemispheric light detector]]></category>
		<category><![CDATA[image]]></category>
		<category><![CDATA[lens]]></category>
		<category><![CDATA[photodetector]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=1059</guid>
		<description><![CDATA[Lenses cannot project a perfect image on the flat back of a camera, so images are distorted at the edges. A revolutionary camera solves this problem by curving the light detector.]]></description>
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		<slash:comments>0</slash:comments>
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		<item>
		<title>The sounds of sax</title>
		<link>http://whyfiles.org/2008/the-sounds-of-sax/</link>
		<comments>http://whyfiles.org/2008/the-sounds-of-sax/#comments</comments>
		<pubDate>Thu, 07 Feb 2008 20:38:06 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Motions and forces]]></category>
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		<category><![CDATA[acoustic impedance]]></category>
		<category><![CDATA[altissimo]]></category>
		<category><![CDATA[amateur]]></category>
		<category><![CDATA[learning sax]]></category>
		<category><![CDATA[professional]]></category>
		<category><![CDATA[resonance]]></category>
		<category><![CDATA[sax]]></category>
		<category><![CDATA[saxophone]]></category>
		<category><![CDATA[throat]]></category>
		<category><![CDATA[vocal tract]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=1036</guid>
		<description><![CDATA[New study shows that controlling throat shape helps pro players hit the high notes that elude amateurs.]]></description>
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		<title>Music and speech</title>
		<link>http://whyfiles.org/2007/music-and-speech-an-intimate-relationship/</link>
		<comments>http://whyfiles.org/2007/music-and-speech-an-intimate-relationship/#comments</comments>
		<pubDate>Thu, 07 Jun 2007 21:13:20 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
				<category><![CDATA[Abilities of technological design]]></category>
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		<category><![CDATA[Matter, energy, and organization in living systems]]></category>
		<category><![CDATA[Motions and forces]]></category>
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		<category><![CDATA[Structure and function in living systems]]></category>
		<category><![CDATA[Technology]]></category>
		<category><![CDATA[Wacky science]]></category>
		<category><![CDATA[chromatic scale]]></category>
		<category><![CDATA[frequency]]></category>
		<category><![CDATA[intervals]]></category>
		<category><![CDATA[language]]></category>
		<category><![CDATA[larynx]]></category>
		<category><![CDATA[music]]></category>
		<category><![CDATA[musical scale]]></category>
		<category><![CDATA[sound]]></category>
		<category><![CDATA[vocal cord]]></category>
		<category><![CDATA[vowels]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=995</guid>
		<description><![CDATA[Most music is built on the 12-tone "chromatic" scale. Does this reflect chance, or the basic structure of the human voice? New study finds tight link between pronunciation and musical scale.
]]></description>
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		<slash:comments>0</slash:comments>
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		<item>
		<title>Star Formation: The Ultimate How-To&#8230;</title>
		<link>http://whyfiles.org/2004/star-formation/</link>
		<comments>http://whyfiles.org/2004/star-formation/#comments</comments>
		<pubDate>Thu, 24 Jun 2004 18:10:09 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Interactions of energy and matter]]></category>
		<category><![CDATA[Motions and forces]]></category>
		<category><![CDATA[Physical Science]]></category>
		<category><![CDATA[Space & astronomy]]></category>
		<category><![CDATA[infrared survey]]></category>
		<category><![CDATA[Milky Way]]></category>
		<category><![CDATA[spitzer space telescope]]></category>
		<category><![CDATA[star formation]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=737</guid>
		<description><![CDATA[Infrared survey of Milky Way shows massive star formation. How could a supernova cause stars to start? ]]></description>
		<wfw:commentRss>http://whyfiles.org/2004/star-formation/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Making of a Racehorse</title>
		<link>http://whyfiles.org/2003/the-making-of-a-racehorse/</link>
		<comments>http://whyfiles.org/2003/the-making-of-a-racehorse/#comments</comments>
		<pubDate>Thu, 24 Jul 2003 14:40:48 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Biology]]></category>
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		<category><![CDATA[Genetic revolution]]></category>
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		<category><![CDATA[biomechanics]]></category>
		<category><![CDATA[horse]]></category>
		<category><![CDATA[race]]></category>
		<category><![CDATA[racehorse]]></category>
		<category><![CDATA[run]]></category>
		<category><![CDATA[seabiscuit]]></category>
		<category><![CDATA[track]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=574</guid>
		<description><![CDATA[Scientists work to select and breed first-rate racehorses using biomechanics and computer software. Result? Love that big butt!]]></description>
		<wfw:commentRss>http://whyfiles.org/2003/the-making-of-a-racehorse/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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		<item>
		<title>Tornadoes: Power &amp; Fury</title>
		<link>http://whyfiles.org/2003/tornadoes-power-fury/</link>
		<comments>http://whyfiles.org/2003/tornadoes-power-fury/#comments</comments>
		<pubDate>Mon, 12 May 2003 16:27:19 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Atmospheric science]]></category>
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		<category><![CDATA[Energy in the earth system]]></category>
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		<category><![CDATA[Natural]]></category>
		<category><![CDATA[Natural and human-induced hazards]]></category>
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		<category><![CDATA[TAP]]></category>
		<category><![CDATA[Transfer of energy]]></category>
		<category><![CDATA[Weather & Climate]]></category>
		<category><![CDATA[energy sources]]></category>
		<category><![CDATA[strong house]]></category>
		<category><![CDATA[tornado]]></category>
		<category><![CDATA[tornado safety]]></category>
		<category><![CDATA[warning]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=604</guid>
		<description><![CDATA[Tornadoes kill 60 Americans each year. How do we predict tornadoes? How do we make houses safer? Where do tornadoes get their energy?]]></description>
		<wfw:commentRss>http://whyfiles.org/2003/tornadoes-power-fury/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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		<item>
		<title>T-rex Runs (but Slowly)</title>
		<link>http://whyfiles.org/2002/t-rex-runs-but-slowly/</link>
		<comments>http://whyfiles.org/2002/t-rex-runs-but-slowly/#comments</comments>
		<pubDate>Thu, 28 Feb 2002 14:40:06 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
				<category><![CDATA[All]]></category>
		<category><![CDATA[Bio brainstorms]]></category>
		<category><![CDATA[Biological Evolution]]></category>
		<category><![CDATA[Biology]]></category>
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		<category><![CDATA[Diversity and adaptations of organisms]]></category>
		<category><![CDATA[Grades 5-8]]></category>
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		<category><![CDATA[Life Science]]></category>
		<category><![CDATA[Motions and forces]]></category>
		<category><![CDATA[Paleontology & archeology]]></category>
		<category><![CDATA[Physical Science]]></category>
		<category><![CDATA[biomechanical study]]></category>
		<category><![CDATA[birds]]></category>
		<category><![CDATA[body mechanics]]></category>
		<category><![CDATA[dinosaurs]]></category>
		<category><![CDATA[run]]></category>
		<category><![CDATA[sprint]]></category>
		<category><![CDATA[T rex]]></category>
		<category><![CDATA[Tyrannosaurus rex]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=573</guid>
		<description><![CDATA[Tyrannosaurus rex was no sprinter, new biomechanical study finds.]]></description>
		<wfw:commentRss>http://whyfiles.org/2002/t-rex-runs-but-slowly/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
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		<item>
		<title>Moon&#8217;s Origin: Giant Smash-up!</title>
		<link>http://whyfiles.org/2001/moons-origin/</link>
		<comments>http://whyfiles.org/2001/moons-origin/#comments</comments>
		<pubDate>Thu, 08 Nov 2001 17:58:49 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[impact theory]]></category>
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		<category><![CDATA[moon formation]]></category>
		<category><![CDATA[Theia]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=727</guid>
		<description><![CDATA[Moon was formed by impact of Theia with Earth. How do we know this, and why might we care?]]></description>
		<wfw:commentRss>http://whyfiles.org/2001/moons-origin/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Violin Physics Explained</title>
		<link>http://whyfiles.org/2001/violin-physics/</link>
		<comments>http://whyfiles.org/2001/violin-physics/#comments</comments>
		<pubDate>Thu, 27 Sep 2001 18:14:50 +0000</pubDate>
		<dc:creator>schulte</dc:creator>
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		<category><![CDATA[Motions and forces]]></category>
		<category><![CDATA[Physical Science]]></category>
		<category><![CDATA[bowing and strings]]></category>
		<category><![CDATA[Isaac Stern]]></category>
		<category><![CDATA[saw-tooth wave]]></category>
		<category><![CDATA[sound production]]></category>
		<category><![CDATA[timbre]]></category>
		<category><![CDATA[violin]]></category>

		<guid isPermaLink="false">http://whyfiles.org/?p=741</guid>
		<description><![CDATA[How violins make sound. And why the ear is the world's most sophisticated spectrum analyzer.]]></description>
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