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	<title>Comments on: The Cell is Like Tron!</title>
	<atom:link href="http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/feed/" rel="self" type="application/rss+xml" />
	<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/</link>
	<description>Random samplings from a universe of ideas.</description>
	<lastBuildDate>Tue, 14 Feb 2012 16:17:46 +0000</lastBuildDate>
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	<item>
		<title>By: David</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20804</link>
		<dc:creator>David</dc:creator>
		<pubDate>Sat, 23 Dec 2006 04:05:01 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20804</guid>
		<description>Praise God.</description>
		<content:encoded><![CDATA[<p>Praise God.</p>
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	<item>
		<title>By: Amor</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20795</link>
		<dc:creator>Amor</dc:creator>
		<pubDate>Tue, 05 Dec 2006 05:09:32 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20795</guid>
		<description>Beautiful in every way. Does anyone know where this music came from?</description>
		<content:encoded><![CDATA[<p>Beautiful in every way. Does anyone know where this music came from?</p>
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	<item>
		<title>By: The Inner Life of the Cell &#171; Perfectly Reasonable Deviations</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20794</link>
		<dc:creator>The Inner Life of the Cell &#171; Perfectly Reasonable Deviations</dc:creator>
		<pubDate>Wed, 15 Nov 2006 15:36:24 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20794</guid>
		<description>[...] Here&#8217;s a rather spectacular computer animation: The Inner Life of a Cell (via Cosmic Variance). [...]</description>
		<content:encoded><![CDATA[<p>[...] Here&#8217;s a rather spectacular computer animation: The Inner Life of a Cell (via Cosmic Variance). [...]</p>
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	</item>
	<item>
		<title>By: Mira</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20796</link>
		<dc:creator>Mira</dc:creator>
		<pubDate>Thu, 09 Nov 2006 20:56:09 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20796</guid>
		<description>Does anybody know where I can find a copy of the full version?</description>
		<content:encoded><![CDATA[<p>Does anybody know where I can find a copy of the full version?</p>
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	<item>
		<title>By: George</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20801</link>
		<dc:creator>George</dc:creator>
		<pubDate>Thu, 19 Oct 2006 18:51:37 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20801</guid>
		<description>Does anyone have a copy of the full version or know where I can find it?</description>
		<content:encoded><![CDATA[<p>Does anyone have a copy of the full version or know where I can find it?</p>
]]></content:encoded>
	</item>
	<item>
		<title>By: Andreas</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20799</link>
		<dc:creator>Andreas</dc:creator>
		<pubDate>Wed, 11 Oct 2006 22:46:09 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20799</guid>
		<description>nice, but a scientifically misleading cartoon. cells are so packed, there is no &quot;looking around&quot; without having another protein right in front of your &quot;eyes&quot;. that this dense chaos inside a cell is so accurate and reliable is a true mystery.</description>
		<content:encoded><![CDATA[<p>nice, but a scientifically misleading cartoon. cells are so packed, there is no &#8220;looking around&#8221; without having another protein right in front of your &#8220;eyes&#8221;. that this dense chaos inside a cell is so accurate and reliable is a true mystery.</p>
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	<item>
		<title>By: TXyankee</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20798</link>
		<dc:creator>TXyankee</dc:creator>
		<pubDate>Sat, 07 Oct 2006 12:23:55 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20798</guid>
		<description>I&#039;ve always had a bit of trouble reconciling the the astounding differences between two halves of planet Earth: the terrestrial and the submarine.

Now I have to think that just below the skin, we&#039;re
every bit as strange as the sea.</description>
		<content:encoded><![CDATA[<p>I&#8217;ve always had a bit of trouble reconciling the the astounding differences between two halves of planet Earth: the terrestrial and the submarine.</p>
<p>Now I have to think that just below the skin, we&#8217;re<br />
every bit as strange as the sea.</p>
]]></content:encoded>
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	<item>
		<title>By: Thinking Aloud: The Pulpmovies Weblog &#187; Fascinatingly beautiful</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20797</link>
		<dc:creator>Thinking Aloud: The Pulpmovies Weblog &#187; Fascinatingly beautiful</dc:creator>
		<pubDate>Thu, 05 Oct 2006 20:40:38 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20797</guid>
		<description>[...] You&#8217;ll need to head over to Cosmic Variance if you want to find out more, but before you do stop and be amazed at the sheer gorgeousness of The Inner Life of The Cell. [...]</description>
		<content:encoded><![CDATA[<p>[...] You&#8217;ll need to head over to Cosmic Variance if you want to find out more, but before you do stop and be amazed at the sheer gorgeousness of The Inner Life of The Cell. [...]</p>
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	</item>
	<item>
		<title>By: Andre</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20783</link>
		<dc:creator>Andre</dc:creator>
		<pubDate>Mon, 02 Oct 2006 22:55:15 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20783</guid>
		<description>farrold,

I had a similar &lt;a href=&quot;http://biocurious.com/cell-visualizations&quot; rel=&quot;nofollow&quot;&gt;reaction&lt;/a&gt; to you.  Have you heard of a company called Tacitus?  They make what they call &quot;data gaming&quot; software using techniques from video game developers to make interactive presentations of complex data sets.  I haven&#039;t seen anything from them yet but they talk about biological applications on their website:

http://www.tacitus.com/</description>
		<content:encoded><![CDATA[<p>farrold,</p>
<p>I had a similar <a href="http://biocurious.com/cell-visualizations" rel="nofollow">reaction</a> to you.  Have you heard of a company called Tacitus?  They make what they call &#8220;data gaming&#8221; software using techniques from video game developers to make interactive presentations of complex data sets.  I haven&#8217;t seen anything from them yet but they talk about biological applications on their website:</p>
<p><a href="http://www.tacitus.com/" rel="nofollow">http://www.tacitus.com/</a></p>
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	<item>
		<title>By: farrold</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20802</link>
		<dc:creator>farrold</dc:creator>
		<pubDate>Mon, 02 Oct 2006 07:00:48 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20802</guid>
		<description>This is a beautiful piece of work, and accurate in many dimensions -- the animators worked closely with Harvard faculty. I&#039;d like to see more of this work, but I&#039;d also like to see a version that makes clear which aspects are utterly false (and why the animators were forced to do it this way).

The main cheat is in the motion trajectories. What looks like action-at-a-distance is, in most instances, a consequence of this cheat. The animations shows smooth motions at the molecular scale that are in reality random walks by twisting, tumbling objects. Brownian motion and thermal fluctuations rule dynamics in the biological world of soft molecular structures moving in water. (By contrast, stiff, anchored structures could indeed move smoothly while merely vibrating.)

To give a sense of the magnitudes, the rotational relaxation time for an ordinary, mid-size protein is less than a microsecond: that is, it will typically rotate through a large angle in that time. In a time of the same order, it will typically travel a large fraction of its diameter. Many of the scenes portray protein mechanisms on a millisecond time-scale, however, so the smooth motions shown represent what are actually random walks following paths perhaps 100 times as long. If shown realistically, the molecular parts would thrash, rattle, and wander, sometimes blundering away to nowhere, but sometimes passing close enough to a target location to respond to short-range forces that align and bind them.

However, this realism would obscure the functional behaviors, making it hard to see the net result of all the jiggling. The actual animation instead obscures the fundamental physical nature of the processes, producing a false impression of mysterious vital forces at work. I&#039;d like to see a version that shows a few mechanisms both ways, giving an explanation of their relationship and the reason for the cheat in the rest of the scenes.

(Also note that the among the objects shown, the ratio of actual size to screen size varies by a thousand or more, and the time scaling varies by a similar factor. Making this clear would be a great help.)</description>
		<content:encoded><![CDATA[<p>This is a beautiful piece of work, and accurate in many dimensions &#8212; the animators worked closely with Harvard faculty. I&#8217;d like to see more of this work, but I&#8217;d also like to see a version that makes clear which aspects are utterly false (and why the animators were forced to do it this way).</p>
<p>The main cheat is in the motion trajectories. What looks like action-at-a-distance is, in most instances, a consequence of this cheat. The animations shows smooth motions at the molecular scale that are in reality random walks by twisting, tumbling objects. Brownian motion and thermal fluctuations rule dynamics in the biological world of soft molecular structures moving in water. (By contrast, stiff, anchored structures could indeed move smoothly while merely vibrating.)</p>
<p>To give a sense of the magnitudes, the rotational relaxation time for an ordinary, mid-size protein is less than a microsecond: that is, it will typically rotate through a large angle in that time. In a time of the same order, it will typically travel a large fraction of its diameter. Many of the scenes portray protein mechanisms on a millisecond time-scale, however, so the smooth motions shown represent what are actually random walks following paths perhaps 100 times as long. If shown realistically, the molecular parts would thrash, rattle, and wander, sometimes blundering away to nowhere, but sometimes passing close enough to a target location to respond to short-range forces that align and bind them.</p>
<p>However, this realism would obscure the functional behaviors, making it hard to see the net result of all the jiggling. The actual animation instead obscures the fundamental physical nature of the processes, producing a false impression of mysterious vital forces at work. I&#8217;d like to see a version that shows a few mechanisms both ways, giving an explanation of their relationship and the reason for the cheat in the rest of the scenes.</p>
<p>(Also note that the among the objects shown, the ratio of actual size to screen size varies by a thousand or more, and the time scaling varies by a similar factor. Making this clear would be a great help.)</p>
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		<title>By: TFox</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20803</link>
		<dc:creator>TFox</dc:creator>
		<pubDate>Sun, 01 Oct 2006 23:33:43 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20803</guid>
		<description>With respect to crowding, see just about anything by David Goodsell for static pictures with accurate representations of cytosolic space. This is a beautiful video though, and I think it&#039;d be hard to see what was going on if it was realistically busy.</description>
		<content:encoded><![CDATA[<p>With respect to crowding, see just about anything by David Goodsell for static pictures with accurate representations of cytosolic space. This is a beautiful video though, and I think it&#8217;d be hard to see what was going on if it was realistically busy.</p>
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		<title>By: Neil</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20800</link>
		<dc:creator>Neil</dc:creator>
		<pubDate>Sun, 01 Oct 2006 11:39:26 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20800</guid>
		<description>If you enjoyed that, do a web or &lt;a href=&quot;http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&amp;itool=toolbar&quot; rel=&quot;nofollow&quot;&gt;PubMed&lt;/a&gt; search for &quot;cryoelectron tomography&quot; or &quot;Wolfgang Baumeister&quot;, one of its main practitioners.  This is a revolutionary imaging technique that allows 3D visualisation of large protein complexes such as ribosomes and the cytoskeleton &lt;em&gt;in situ&lt;/em&gt; in cells.</description>
		<content:encoded><![CDATA[<p>If you enjoyed that, do a web or <a href="http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=PubMed&amp;itool=toolbar" rel="nofollow">PubMed</a> search for &#8220;cryoelectron tomography&#8221; or &#8220;Wolfgang Baumeister&#8221;, one of its main practitioners.  This is a revolutionary imaging technique that allows 3D visualisation of large protein complexes such as ribosomes and the cytoskeleton <em>in situ</em> in cells.</p>
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	<item>
		<title>By: bob</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20784</link>
		<dc:creator>bob</dc:creator>
		<pubDate>Sun, 01 Oct 2006 03:26:06 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20784</guid>
		<description>&lt;blockquote&gt;The video posted here is condensed from an eight minute piece. The longer piece has a voiceover and labels and is actually intended as a teaching tool, whereas this edit is more about just showing off the visuals.&lt;/blockquote&gt;

(from: http://www.spinquad.com/forums/showpost.php?p=141933&amp;postcount=15)



Does anybody know where the full version can be found?</description>
		<content:encoded><![CDATA[<blockquote><p>The video posted here is condensed from an eight minute piece. The longer piece has a voiceover and labels and is actually intended as a teaching tool, whereas this edit is more about just showing off the visuals.</p></blockquote>
<p>(from: <a href="http://www.spinquad.com/forums/showpost.php?p=141933&#038;postcount=15" rel="nofollow">http://www.spinquad.com/forums/showpost.php?p=141933&#038;postcount=15</a>)</p>
<p>Does anybody know where the full version can be found?</p>
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		<title>By: Samantha</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20785</link>
		<dc:creator>Samantha</dc:creator>
		<pubDate>Sat, 30 Sep 2006 18:51:54 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20785</guid>
		<description>Hi!  This movie is fantastic!

 I also think we are seeing a lymphocyte rolling along inside a blood vessel.  We first see the exterior of the cell and then we zoom in to see the proteins in the membrane that are mediating the rolling, by contacting other proteins in the surface of the substrate.  We *then* go inside the cell and first have a tour of the various cellular components  - mostly the elements of the cytoskeleton and proteins being moved around in the membrane on lipid rafts.   We then, in just a beautiful sequence, see the assembly and disassembly of actin and then microtubules before watching a motor protein (kinesin, I would say) staggering along a microtubule bearing its enormous cargo (a vesicle).  In a further extended sequence we watch mRNA being processed into protein.  It is ejected from the nucleus, processed and translated by ribosomes into the endoplasmic reticulum, the protein is transported to the Golgi apparatus, where it is further processed and then finally ejected into the cytosol where it carried (lipid raft again?) to the membrane where its function will be to mediate the rolling of the lymphocyte.  Thus, we come back full circle.</description>
		<content:encoded><![CDATA[<p>Hi!  This movie is fantastic!</p>
<p> I also think we are seeing a lymphocyte rolling along inside a blood vessel.  We first see the exterior of the cell and then we zoom in to see the proteins in the membrane that are mediating the rolling, by contacting other proteins in the surface of the substrate.  We *then* go inside the cell and first have a tour of the various cellular components  &#8211; mostly the elements of the cytoskeleton and proteins being moved around in the membrane on lipid rafts.   We then, in just a beautiful sequence, see the assembly and disassembly of actin and then microtubules before watching a motor protein (kinesin, I would say) staggering along a microtubule bearing its enormous cargo (a vesicle).  In a further extended sequence we watch mRNA being processed into protein.  It is ejected from the nucleus, processed and translated by ribosomes into the endoplasmic reticulum, the protein is transported to the Golgi apparatus, where it is further processed and then finally ejected into the cytosol where it carried (lipid raft again?) to the membrane where its function will be to mediate the rolling of the lymphocyte.  Thus, we come back full circle.</p>
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	<item>
		<title>By: Doug</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20786</link>
		<dc:creator>Doug</dc:creator>
		<pubDate>Sat, 30 Sep 2006 11:33:36 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20786</guid>
		<description>This is a great mathematical pictorial representation of bio-physical-chemistry!

Could this biological energy exchange mathematical game have anything in common with a possible QM energy exchange mathematical game?

Perhaps a change in scale or gauge may prevent identical but not similar games?</description>
		<content:encoded><![CDATA[<p>This is a great mathematical pictorial representation of bio-physical-chemistry!</p>
<p>Could this biological energy exchange mathematical game have anything in common with a possible QM energy exchange mathematical game?</p>
<p>Perhaps a change in scale or gauge may prevent identical but not similar games?</p>
]]></content:encoded>
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	<item>
		<title>By: Quasar9</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20787</link>
		<dc:creator>Quasar9</dc:creator>
		<pubDate>Sat, 30 Sep 2006 11:26:27 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20787</guid>
		<description>Great video-tron-ics Sean. Beautiful!

Particles in molecular biology dance with such seemingly effortless and melodious grace (note background music) creating spectacular designs in nature, bar exceptions when they are subject to extreme temperatures or forces, or other disturbances (mutations, cancers)

Particles and events in particle physics appear so much more faster and violent (heavy rock music).
Simply different Energy Scales and tempo, Time(?) Scales</description>
		<content:encoded><![CDATA[<p>Great video-tron-ics Sean. Beautiful!</p>
<p>Particles in molecular biology dance with such seemingly effortless and melodious grace (note background music) creating spectacular designs in nature, bar exceptions when they are subject to extreme temperatures or forces, or other disturbances (mutations, cancers)</p>
<p>Particles and events in particle physics appear so much more faster and violent (heavy rock music).<br />
Simply different Energy Scales and tempo, Time(?) Scales</p>
]]></content:encoded>
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	<item>
		<title>By: schnitzi</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20788</link>
		<dc:creator>schnitzi</dc:creator>
		<pubDate>Sat, 30 Sep 2006 09:14:37 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20788</guid>
		<description>That&#039;s pretty awesome.  I agree with your &quot;spooky action-at-a-distance&quot; assessment -- that&#039;s something that has always bothered me about biologicaly chemistry.  It seems that some molecules are like little homonculi with volition of their own.  I would love to know how accurate the animation is, and what the actual processes we&#039;re witnessing are.</description>
		<content:encoded><![CDATA[<p>That&#8217;s pretty awesome.  I agree with your &#8220;spooky action-at-a-distance&#8221; assessment &#8212; that&#8217;s something that has always bothered me about biologicaly chemistry.  It seems that some molecules are like little homonculi with volition of their own.  I would love to know how accurate the animation is, and what the actual processes we&#8217;re witnessing are.</p>
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	<item>
		<title>By: Sean</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20789</link>
		<dc:creator>Sean</dc:creator>
		<pubDate>Sat, 30 Sep 2006 05:30:36 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20789</guid>
		<description>Brad, I haven&#039;t found one.  &lt;a href=&quot;http://scienceblogs.com/pharyngula/2006/09/molecular_machines.php&quot; rel=&quot;nofollow&quot;&gt;PZ mentioned the video&lt;/a&gt; a couple of weeks ago, but for some reason I didn&#039;t click on it then.</description>
		<content:encoded><![CDATA[<p>Brad, I haven&#8217;t found one.  <a href="http://scienceblogs.com/pharyngula/2006/09/molecular_machines.php" rel="nofollow">PZ mentioned the video</a> a couple of weeks ago, but for some reason I didn&#8217;t click on it then.</p>
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	<item>
		<title>By: Robert</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20791</link>
		<dc:creator>Robert</dc:creator>
		<pubDate>Sat, 30 Sep 2006 04:12:31 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20791</guid>
		<description>Wow! It took @ 2 billion years for evolution to get this far -- and from the eukaryotic cell to us is a mere @ 1.2 billion.</description>
		<content:encoded><![CDATA[<p>Wow! It took @ 2 billion years for evolution to get this far &#8212; and from the eukaryotic cell to us is a mere @ 1.2 billion.</p>
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	<item>
		<title>By: Richard</title>
		<link>http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/comment-page-1/#comment-20790</link>
		<dc:creator>Richard</dc:creator>
		<pubDate>Sat, 30 Sep 2006 03:36:36 +0000</pubDate>
		<guid isPermaLink="false">http://blogs.discovermagazine.com/cosmicvariance/2006/09/29/the-cell-is-like-tron/#comment-20790</guid>
		<description>Wow! Incredible! I&#039;m not sure what I was looking at most of the time, but I believe the last sequence was showing a lymphocyte leaving a blood vessel through a flap into surrounding tissue.</description>
		<content:encoded><![CDATA[<p>Wow! Incredible! I&#8217;m not sure what I was looking at most of the time, but I believe the last sequence was showing a lymphocyte leaving a blood vessel through a flap into surrounding tissue.</p>
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