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  <channel>
    <title>NPR: Science Friday Podcast</title>
    <link>http://www.sciencefriday.com/?ft=2&amp;f=510221</link>
    <description><![CDATA[Science Friday, as heard on NPR, is a weekly discussion of the latest news in science, technology, health, and the environment hosted by Ira Flatow.  Ira interviews scientists, authors, and policymakers, and listeners can call in and ask questions as well. Hear it each week on NPR stations nationwide -- or online here!]]></description>
    <copyright>Copyright 2007 NPR - For Personal Use Only</copyright>
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    <itunes:summary><![CDATA[Science Friday, as heard on NPR, is a weekly discussion of the latest news in science, technology, health, and the environment hosted by Ira Flatow.  Ira interviews scientists, authors, and policymakers, and listeners can call in and ask questions as well. Hear it each week on NPR stations nationwide -- or online here!]]></itunes:summary>
    <itunes:subtitle>Science Friday, as heard on NPR, is a weekly discussion of the latest news in science, technology, h</itunes:subtitle>
    <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
    <itunes:author>National Public Radio</itunes:author>
    <itunes:owner>
      <itunes:email/>
      <itunes:name/>
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    <itunes:explicit>no</itunes:explicit>
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      <url>http://media.npr.org/images/podcasts/thumbnail//npr_sciencefriday_75.jpg</url>
      <title>NPR: Science Friday Podcast</title>
      <link>http://www.sciencefriday.com/?ft=2&amp;f=510221</link>
    </image>
    <lastBuildDate>Fri, 13 Nov 2009 18:17:09 -0500</lastBuildDate>
    <item>
      <title>One-Woman Show Explores Human Side Of Health Care</title>
      <description><![CDATA[Actress Anna Deavere Smith traveled across the country interviewing people about their thoughts on health care. From an injured bull rider to a medical school dean, she recounts what she heard through monologues in her latest documentary-style theater production, <em>Let Me Down Easy.</em>]]></description>
      <pubDate>Fri, 13 Nov 2009 18:17:09 -0500</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=120387137&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120404440/npr_120404440.mp3</guid>
      <itunes:summary><![CDATA[Actress Anna Deavere Smith traveled across the country interviewing people about their thoughts on health care. From an injured bull rider to a medical school dean, she recounts what she heard through monologues in her latest documentary-style theater production, Let Me Down Easy.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>28:35</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120404440/npr_120404440.mp3" length="13850292" type="audio/mpeg"/>
    </item>
    <item>
      <title>Two Graphic Novels Explain Science, Colorfully</title>
      <description><![CDATA[Moving beyond traditional superheroes, two new graphic novels recount the epic tales of scientists and the research that made them famous. Ira Flatow talks with authors Michael Keller and Apostolos Doxiadis about their graphic novels on natural selection and logic.]]></description>
      <pubDate>Fri, 13 Nov 2009 18:17:01 -0500</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=120387143&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120404437/npr_120404437.mp3</guid>
      <itunes:summary><![CDATA[Moving beyond traditional superheroes, two new graphic novels recount the epic tales of scientists and the research that made them famous. Ira Flatow talks with authors Michael Keller and Apostolos Doxiadis about their graphic novels on natural selection and logic.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>19:29</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120404437/npr_120404437.mp3" length="9481364" type="audio/mpeg"/>
    </item>
    <item>
      <title>Clone That Smile, Digitally</title>
      <description><![CDATA[Researchers have figured out how to track the facial expressions of one person and map those movements onto a digital image of another person's face in real time. The result is something like a digital video puppet, which psychologists say may reveal something about human nature.]]></description>
      <pubDate>Fri, 13 Nov 2009 18:16:53 -0500</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=120387133&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120404414/npr_120404414.mp3</guid>
      <itunes:summary><![CDATA[Researchers have figured out how to track the facial expressions of one person and map those movements onto a digital image of another person's face in real time. The result is something like a digital video puppet, which psychologists say may reveal something about human nature.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>26:46</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120404414/npr_120404414.mp3" length="12983026" type="audio/mpeg"/>
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    <item>
      <title>Therapists Split On Multiple Personalities</title>
      <description><![CDATA[Can people develop different personalities in response to abuse? Some therapists say up to one percent of the population suffer from dissociative identity disorder. Others say the disease doesn't exist, or is very rare. Two therapists discuss the controversial diagnosis.]]></description>
      <pubDate>Fri, 13 Nov 2009 18:16:39 -0500</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=120387129&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120404410/npr_120404410.mp3</guid>
      <itunes:summary><![CDATA[Can people develop different personalities in response to abuse? Some therapists say up to one percent of the population suffer from dissociative identity disorder. Others say the disease doesn't exist, or is very rare. Two therapists discuss the controversial diagnosis.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>26:46</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120404410/npr_120404410.mp3" length="12983026" type="audio/mpeg"/>
    </item>
    <item>
      <title>Sailing Through Space, On A Starboard Tack</title>
      <description><![CDATA[In the vacuum of space, photons &mdash; not wind &mdash; may someday fill the sails of lightweight spacecraft, propelling them without need for engines or fuel. Louis Friedman, executive director of The Planetary Society, discusses the society's plans for a sailing spaceship prototype.]]></description>
      <pubDate>Fri, 13 Nov 2009 18:16:37 -0500</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=120387123&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120404405/npr_120404405.mp3</guid>
      <itunes:summary><![CDATA[In the vacuum of space, photons &mdash; not wind &mdash; may someday fill the sails of lightweight spacecraft, propelling them without need for engines or fuel. Louis Friedman, executive director of The Planetary Society, discusses the society's plans for a sailing spaceship prototype.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>4:27</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120404405/npr_120404405.mp3" length="2267807" type="audio/mpeg"/>
    </item>
    <item>
      <title>Do Moon Craters Harbor Caches Of Water Ice?</title>
      <description><![CDATA[A NASA rocket slammed into a lunar crater in October. A second spacecraft followed minutes later, taking inventory of kicked-up debris and sending data to Earth. Scientists have now analyzed those data, which may reveal whether the moon harbors significant quantities of water ice.]]></description>
      <pubDate>Fri, 13 Nov 2009 18:16:25 -0500</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=120387119&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120404402/npr_120404402.mp3</guid>
      <itunes:summary><![CDATA[A NASA rocket slammed into a lunar crater in October. A second spacecraft followed minutes later, taking inventory of kicked-up debris and sending data to Earth. Scientists have now analyzed those data, which may reveal whether the moon harbors significant quantities of water ice.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>12:28</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120404402/npr_120404402.mp3" length="6119092" type="audio/mpeg"/>
    </item>
    <item>
      <title>Considering Values In The Health Care Debate</title>
      <description><![CDATA[As health care legislation moves through Congress, bioethicist Thomas H. Murray asks if enough attention is being paid to concepts such as justice, fairness and liberty. Murray and health care economist Len Nichols discuss the role of values in the health care debate.]]></description>
      <pubDate>Sat, 07 Nov 2009 03:32:33 -0500</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=120174337&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120197851/npr_120197851.mp3</guid>
      <itunes:summary><![CDATA[As health care legislation moves through Congress, bioethicist Thomas H. Murray asks if enough attention is being paid to concepts such as justice, fairness and liberty. Murray and health care economist Len Nichols discuss the role of values in the health care debate.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>35:21</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120197851/npr_120197851.mp3" length="17101387" type="audio/mpeg"/>
    </item>
    <item>
      <title>Giving Athletes A Heads-Up On Concussions</title>
      <description><![CDATA[Football players take a lot of hits, but when does hard-headed play go too far? New research suggests that head trauma can do lasting damage. Two brain researchers talk about what happens in the brain when a player gets hit, and how athletes can better protect themselves.]]></description>
      <pubDate>Sat, 07 Nov 2009 03:32:30 -0500</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=120174333&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120197848/npr_120197848.mp3</guid>
      <itunes:summary><![CDATA[Football players take a lot of hits, but when does hard-headed play go too far? New research suggests that head trauma can do lasting damage. Two brain researchers talk about what happens in the brain when a player gets hit, and how athletes can better protect themselves.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>12:14</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120197848/npr_120197848.mp3" length="6004571" type="audio/mpeg"/>
    </item>
    <item>
      <title>Students Build Living Microbial Machines</title>
      <description><![CDATA[At the 2009 International Genetically Engineered Machine competition, undergraduates from all over the world unveiled the living machines they'd created with snippets of DNA, from bacteria that change color when they detect pollutants to ones that secrete non-toxic superglue.]]></description>
      <pubDate>Sat, 07 Nov 2009 03:32:26 -0500</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=120174329&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120197845/npr_120197845.mp3</guid>
      <itunes:summary><![CDATA[At the 2009 International Genetically Engineered Machine competition, undergraduates from all over the world unveiled the living machines they'd created with snippets of DNA, from bacteria that change color when they detect pollutants to ones that secrete non-toxic superglue.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>14:45</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120197845/npr_120197845.mp3" length="7211010" type="audio/mpeg"/>
    </item>
    <item>
      <title>Can Oceans Survive The Human Appetite For Seafood?</title>
      <description><![CDATA[Faced with declining fish stocks, many nations are looking for sustainable ways to have their fish &mdash; and eat it too. But how much fishing is too much? Oceanographer Sylvia Earle discusses this and other topics in her book <em>The World is Blue: How Our Fate and the Ocean's Are One</em>.]]></description>
      <pubDate>Sat, 07 Nov 2009 03:32:22 -0500</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=120174322&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120197841/npr_120197841.mp3</guid>
      <itunes:summary><![CDATA[Faced with declining fish stocks, many nations are looking for sustainable ways to have their fish &mdash; and eat it too. But how much fishing is too much? Oceanographer Sylvia Earle discusses this and other topics in her book The World is Blue: How Our Fate and the Ocean's Are One.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>19:50</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120197841/npr_120197841.mp3" length="9655026" type="audio/mpeg"/>
    </item>
    <item>
      <title>Building A Better Lightbulb</title>
      <description><![CDATA[The U.S. Department of Energy is offering $10 million to the first individual or company to develop an energy-efficient LED replacement for the standard 60-watt incandescent bulb. DOE lighting program manager James Brodrick discusses the L Prize, and what makes a better bulb.]]></description>
      <pubDate>Sat, 07 Nov 2009 03:32:17 -0500</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=120174318&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120197838/npr_120197838.mp3</guid>
      <itunes:summary><![CDATA[The U.S. Department of Energy is offering $10 million to the first individual or company to develop an energy-efficient LED replacement for the standard 60-watt incandescent bulb. DOE lighting program manager James Brodrick discusses the L Prize, and what makes a better bulb.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>11:57</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/120197838/npr_120197838.mp3" length="5864555" type="audio/mpeg"/>
    </item>
    <item>
      <title>A Head-Shrinker Studies The Zombie Brain</title>
      <description><![CDATA[Psychiatrist Steven Schlozman recently expanded his practice from humans to the inhuman. Poring over his library of classic zombie films, he came up with neurobiological explanations for the behavior of the undead, such as lack of a frontal lobe and an overactive amygdala.]]></description>
      <pubDate>Fri, 30 Oct 2009 18:47:51 -0400</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=114319726&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114343107/npr_114343107.mp3</guid>
      <itunes:summary><![CDATA[Psychiatrist Steven Schlozman recently expanded his practice from humans to the inhuman. Poring over his library of classic zombie films, he came up with neurobiological explanations for the behavior of the undead, such as lack of a frontal lobe and an overactive amygdala.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>15:01</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114343107/npr_114343107.mp3" length="7341413" type="audio/mpeg"/>
    </item>
    <item>
      <title>Halloween: A Holiday For Gadgets</title>
      <description><![CDATA[For gadget lovers, Halloween is more geeky than spooky. Mark Frauenfelder, editor-in-chief of <em>Make Magazine</em>, talks about the geekiest do-it-yourself Halloween costumes and decorations, from spray foam guts and singing pumpkins to a fortune-teller costume built on a Segway.]]></description>
      <pubDate>Fri, 30 Oct 2009 18:47:46 -0400</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=114319720&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114343104/npr_114343104.mp3</guid>
      <itunes:summary><![CDATA[For gadget lovers, Halloween is more geeky than spooky. Mark Frauenfelder, editor-in-chief of Make Magazine, talks about the geekiest do-it-yourself Halloween costumes and decorations, from spray foam guts and singing pumpkins to a fortune-teller costume built on a Segway.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>19:49</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114343104/npr_114343104.mp3" length="9641443" type="audio/mpeg"/>
    </item>
    <item>
      <title>People ... People Who Eat People</title>
      <description><![CDATA[In her book <em>Dinner With a Cannibal</em>, writer Carole Travis-Henikoff documents the long &mdash; and often hidden &mdash; history of cannibalism in humans. Travis-Henikoff notes that cannibalism wasn't always taboo, whether it be eating loved ones out of respect or eating enemies out of disdain.]]></description>
      <pubDate>Fri, 30 Oct 2009 18:47:42 -0400</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=114319712&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114343099/npr_114343099.mp3</guid>
      <itunes:summary><![CDATA[In her book Dinner With a Cannibal, writer Carole Travis-Henikoff documents the long &mdash; and often hidden &mdash; history of cannibalism in humans. Travis-Henikoff notes that cannibalism wasn't always taboo, whether it be eating loved ones out of respect or eating enemies out of disdain.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>12:00</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114343099/npr_114343099.mp3" length="5891095" type="audio/mpeg"/>
    </item>
    <item>
      <title>Why Runners Like To Feel The Burn</title>
      <description><![CDATA[What compels hundreds of thousands of runners to compete in marathons every year? Ira Flatow and guests discuss running research &mdash; from how humans are adapted specifically for long-distance running to why working up a sweat might be good for the brain, as well as the body.]]></description>
      <pubDate>Fri, 30 Oct 2009 18:47:39 -0400</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=114319707&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114343087/npr_114343087.mp3</guid>
      <itunes:summary><![CDATA[What compels hundreds of thousands of runners to compete in marathons every year? Ira Flatow and guests discuss running research &mdash; from how humans are adapted specifically for long-distance running to why working up a sweat might be good for the brain, as well as the body.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>17:03</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114343087/npr_114343087.mp3" length="8315885" type="audio/mpeg"/>
    </item>
    <item>
      <title>Happy Birthday, Internet</title>
      <description><![CDATA[On Oct. 29, 1969, around 10:30 P.M., a message from one computer was sent over a modified phone line to another computer hundreds of miles away. Some say the Internet was born that day. UCLA computer scientist Leonard Kleinrock, who was there, gives his account.]]></description>
      <pubDate>Fri, 30 Oct 2009 18:47:33 -0400</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=114319703&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114343084/npr_114343084.mp3</guid>
      <itunes:summary><![CDATA[On Oct. 29, 1969, around 10:30 P.M., a message from one computer was sent over a modified phone line to another computer hundreds of miles away. Some say the Internet was born that day. UCLA computer scientist Leonard Kleinrock, who was there, gives his account.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>17:42</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114343084/npr_114343084.mp3" length="8624548" type="audio/mpeg"/>
    </item>
    <item>
      <title>Examining Gene Therapy As Treatment For Blindness</title>
      <description><![CDATA[Reporting in <em>The Lancet</em>, doctors found success in treating Leber's congenital amaurosis, a rare type of blindness, with gene therapy. Study author Katherine High explains how injecting a gene-carrying virus into the eye has improved vision in a handful of patients.]]></description>
      <pubDate>Fri, 30 Oct 2009 18:47:27 -0400</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=114319697&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114343081/npr_114343081.mp3</guid>
      <itunes:summary><![CDATA[Reporting in The Lancet, doctors found success in treating Leber's congenital amaurosis, a rare type of blindness, with gene therapy. Study author Katherine High explains how injecting a gene-carrying virus into the eye has improved vision in a handful of patients.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>11:53</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114343081/npr_114343081.mp3" length="5834044" type="audio/mpeg"/>
    </item>
    <item>
      <title>Did Algae Contribute To Mass Extinctions?</title>
      <description><![CDATA[Forget asteroids &mdash; a new theory says algae were the key to the dinosaurs' extinction millions of years ago. Ecotoxicologist John Rodgers details the evidence for the theory and explains why some algae can be harmful in large quantities, even to present day animal populations.]]></description>
      <pubDate>Fri, 23 Oct 2009 18:03:32 -0400</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=114081479&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114116378/npr_114116378.mp3</guid>
      <itunes:summary><![CDATA[Forget asteroids &mdash; a new theory says algae were the key to the dinosaurs' extinction millions of years ago. Ecotoxicologist John Rodgers details the evidence for the theory and explains why some algae can be harmful in large quantities, even to present day animal populations.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>11:07</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
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    </item>
    <item>
      <title>Seeing The Softer Side Of Nature</title>
      <description><![CDATA[In his new book, <em>The Age of Empathy</em>, Frans de Waal says nature has been wrongly depicted to justify a "survival of the fittest" attitude in humans. Drawing on examples from his primate observations, de Waal says it's time for humans to rethink how we treat each other.]]></description>
      <pubDate>Fri, 23 Oct 2009 18:03:27 -0400</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=114081473&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114116366/npr_114116366.mp3</guid>
      <itunes:summary><![CDATA[In his new book, The Age of Empathy, Frans de Waal says nature has been wrongly depicted to justify a "survival of the fittest" attitude in humans. Drawing on examples from his primate observations, de Waal says it's time for humans to rethink how we treat each other.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>24:28</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
      <enclosure url="http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114116366/npr_114116366.mp3" length="11873554" type="audio/mpeg"/>
    </item>
    <item>
      <title>Natural Selection Works On Humans, Too</title>
      <description><![CDATA[Mining data from the Framingham Heart Study, scientists say they've been able to tease out the effects of natural selection on humans. Evolutionary biologist Stephen Stearns explains how evolutionary forces may produce shorter, rounder, more fertile women in the future.]]></description>
      <pubDate>Fri, 23 Oct 2009 18:03:23 -0400</pubDate>
      <link>http://www.npr.org/templates/story/story.php?storyId=114081469&amp;ft=2&amp;f=510221</link>
      <guid>http://podcastdownload.npr.org/anon.npr-podcasts/podcast/510221/114116363/npr_114116363.mp3</guid>
      <itunes:summary><![CDATA[Mining data from the Framingham Heart Study, scientists say they've been able to tease out the effects of natural selection on humans. Evolutionary biologist Stephen Stearns explains how evolutionary forces may produce shorter, rounder, more fertile women in the future.]]></itunes:summary>
      <itunes:keywords>NPR,National Public Radio,Science Friday,Morning Edition,All Things Considered,Fresh Air</itunes:keywords>
      <itunes:duration>12:29</itunes:duration>
      <itunes:explicit>no</itunes:explicit>
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