<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0"
	xmlns:content="http://purl.org/rss/1.0/modules/content/"
	xmlns:wfw="http://wellformedweb.org/CommentAPI/"
	xmlns:dc="http://purl.org/dc/elements/1.1/"
	xmlns:atom="http://www.w3.org/2005/Atom"
	xmlns:sy="http://purl.org/rss/1.0/modules/syndication/"
	xmlns:slash="http://purl.org/rss/1.0/modules/slash/"
	>

<channel>
	<title>JeremiahTolbert.com &#187; Science</title>
	<atom:link href="http://www.jeremiahtolbert.com/category/science/feed/" rel="self" type="application/rss+xml" />
	<link>http://www.jeremiahtolbert.com</link>
	<description>Writing &#124; Photography &#124; Web Design</description>
	<lastBuildDate>Wed, 08 Feb 2012 14:08:47 +0000</lastBuildDate>
	<language>en</language>
	<sy:updatePeriod>hourly</sy:updatePeriod>
	<sy:updateFrequency>1</sy:updateFrequency>
	<generator>http://wordpress.org/?v=3.3.1</generator>
		<item>
		<title>My 10 Second Impression of Fringe</title>
		<link>http://www.jeremiahtolbert.com/2009/01/my-10-second-impression-of-fringe/</link>
		<comments>http://www.jeremiahtolbert.com/2009/01/my-10-second-impression-of-fringe/#comments</comments>
		<pubDate>Mon, 26 Jan 2009 04:29:47 +0000</pubDate>
		<dc:creator>Jeremiah Tolbert</dc:creator>
				<category><![CDATA[Recommended Media]]></category>
		<category><![CDATA[Science]]></category>
		<category><![CDATA[Speculative Fiction]]></category>
		<category><![CDATA[TV]]></category>
		<category><![CDATA[Fringe]]></category>
		<category><![CDATA[JJ Abrams]]></category>
		<category><![CDATA[The Pattern]]></category>
		<category><![CDATA[Walter "Crazy Motherfucker" Bishop]]></category>

		<guid isPermaLink="false">http://www.jeremiahtolbert.com/?p=771</guid>
		<description><![CDATA[My super-quick impression of the TV show Fringe: SHOW INTRO Ridiculous and bad science premise  results in someone being gorily murdered, often involving slime and/or blood. CREDITS roll. OLIVIA (stares emotionlessly) WALTER BISHOP Something off the wall, either grossly inappropriate or involving food, while examing some grotesque CG creature or corpse. (The audience laughs and [...]]]></description>
			<content:encoded><![CDATA[<p>My super-quick impression of the TV show <em>Fringe:</em></p>
<p style="text-align: center;">SHOW INTRO</p>
<p>Ridiculous and bad science premise  results in someone being gorily murdered, often involving slime and/or blood.</p>
<p>CREDITS roll.</p>
<p style="text-align: center;">OLIVIA</p>
<p style="text-align: center;">(stares emotionlessly)</p>
<p style="text-align: center;">WALTER BISHOP</p>
<p style="text-align: left;">Something off the wall, either grossly inappropriate or involving food, while examing some grotesque CG creature or corpse.</p>
<p style="text-align: center;">(The audience laughs and shakes their heads).</p>
<p style="text-align: center;">PETER BISHOP</p>
<p style="text-align: center;">(smirks mysteriously)</p>
<p style="text-align: center;">THE END</p>
<p style="text-align: left;">And yet I love this show.  I want to start a Doctor Walter “Crazy Motherfucker” Bishop fanclub.</p>
<p style="text-align: left;">Still, the most recent episode had some painfully bad science.  The cold is caused by a virus.  Viruses are not cells.  Come on, <em>Fringe</em>, that’s first-year bio stuff.  Don’t embarass me like that again. Or I might just have to download Walter highlight reels instead of actually watching your show.</p>
]]></content:encoded>
			<wfw:commentRss>http://www.jeremiahtolbert.com/2009/01/my-10-second-impression-of-fringe/feed/</wfw:commentRss>
		<slash:comments>3</slash:comments>
		</item>
		<item>
		<title>Virophage</title>
		<link>http://www.jeremiahtolbert.com/2008/08/virophage/</link>
		<comments>http://www.jeremiahtolbert.com/2008/08/virophage/#comments</comments>
		<pubDate>Mon, 11 Aug 2008 02:08:44 +0000</pubDate>
		<dc:creator>Jeremiah Tolbert</dc:creator>
				<category><![CDATA[Science]]></category>
		<category><![CDATA[Speculative Fiction]]></category>
		<category><![CDATA[biology]]></category>
		<category><![CDATA[virus]]></category>

		<guid isPermaLink="false">http://www.jeremiahtolbert.com/?p=336</guid>
		<description><![CDATA[Damn it, while I’m out immersing myself in the science fiction world all week at Denvention 3, science goes and spits out something truly amazing and I’m only just now reading about it. Check this out: There is a large virus that gets sick by becoming infected by a smaller virus. If that does not [...]]]></description>
			<content:encoded><![CDATA[<p>Damn it, while I’m out immersing myself in the science fiction world all week at Denvention 3, science goes and spits out something truly amazing and I’m only just now reading about it.  Check this out:</p>
<p><a href="http://www.nature.com/news/2008/080806/full/454677a.html?s=news_rss#B1">There is a large virus that gets sick by becoming infected by a smaller virus.</a></p>
<p>If that does not blow your mind, then nothing will.  </p>
<p>It definitely settles the debate for me as to whether or not viruses are life.  Maybe one of the definitions of life should boil down to “something that can be infected by a virus.”  </p>
]]></content:encoded>
			<wfw:commentRss>http://www.jeremiahtolbert.com/2008/08/virophage/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Fermi’s Paradox and the Great Filter</title>
		<link>http://www.jeremiahtolbert.com/2008/04/fermis-paradox-and-the-great-filter/</link>
		<comments>http://www.jeremiahtolbert.com/2008/04/fermis-paradox-and-the-great-filter/#comments</comments>
		<pubDate>Wed, 30 Apr 2008 15:34:26 +0000</pubDate>
		<dc:creator>Jeremiah Tolbert</dc:creator>
				<category><![CDATA[Science]]></category>
		<category><![CDATA[Speculative Fiction]]></category>
		<category><![CDATA[Fermi's Paradox]]></category>
		<category><![CDATA[Great Silence]]></category>
		<category><![CDATA[Nick Bostrom]]></category>
		<category><![CDATA[Philosophy]]></category>
		<category><![CDATA[quantum]]></category>
		<category><![CDATA[Science fiction]]></category>

		<guid isPermaLink="false">http://www.jeremiahtolbert.com/2008/fermis-paradox-and-the-great-filter/</guid>
		<description><![CDATA[The interesting astro-related blog Centauri Dreams had a post the other day discussing one of my pet topics, Fermi’s Paradox. The latest discussion and solution to be offered comes from Robin Hanson by way of Nick Bostrom, and the idea is being referred to as the “Great Filter.” This is kind of a meta concept, [...]]]></description>
			<content:encoded><![CDATA[<p>The interesting astro-related blog <a href="http://www.centauri-dreams.org/?p=1848" title="Centauri Dreams">Centauri Dreams</a> had a post the other day discussing one of my pet topics, <a href="http://en.wikipedia.org/wiki/Fermi_paradox" title="Fermi paradox" rel="wikipedia" target="_blank" class="zem_slink">Fermi’s Paradox</a>.    The latest discussion and solution to be offered comes from Robin Hanson by way of <a href="http://www.technologyreview.com/Infotech/20569/page1/?a=f" title="Technology Review article">Nick Bostrom</a>, and the idea is being referred to as the “Great Filter.”  This is kind of a meta concept, an idea concerning probability: we see no advanced life in the universe, so there must be some filter event that destroys/eliminates intelligent life. Here is Bostrom’s explanation:</p>
<blockquote><p>The filter consists of one or more evolutionary transitions or steps that must be traversed at great odds in order for an Earth-like planet to produce a civilization capable of exploring distant solar systems.</p></blockquote>
<p>So is this filter event in our relative past, or our relative future?  Have we already passed through it, or is it yet to come?   Bostrom believes that the Great Silence is a good thing, and means that we’re past the filter event.  If we find complex life, then we should be concerned that the event is yet to come.</p>
<p>As a SF writer, this stuff is a gold mine.  I’ve read quite a few novels and short stories that dance with the Paradox.  It’s a very important question, and it really lights a match in the boiler beneath my imagination.</p>
<p>For instance, I was wondering this morning, while thinking about the Great Filter, if the reason behind the silence out there might somehow be a result of the fundamentals of <a href="http://en.wikipedia.org/wiki/Quantum_mechanics" title="Quantum mechanics" rel="wikipedia" target="_blank" class="zem_slink">quantum mechanics</a>, of which I have very little understanding of, so you’ll have to forgive me if I mangle something.</p>
<p>It’s observational bias that I keep turning over in my mind.  The idea that we change the results of an experiment just by observing them.  Is it possible that once one “observer” species evolves, it’s very existence is the filter that prevents other life from evolving? Our observation changes the universe?  I don’t feel like I can explain this idea. I need to read up on quantum mechanics and its implications to develop this line of thought further.</p>
]]></content:encoded>
			<wfw:commentRss>http://www.jeremiahtolbert.com/2008/04/fermis-paradox-and-the-great-filter/feed/</wfw:commentRss>
		<slash:comments>4</slash:comments>
		</item>
		<item>
		<title>Clay Shirky and The Cognitive Surplus</title>
		<link>http://www.jeremiahtolbert.com/2008/04/clay-shirky-and-the-cognitive-surplus/</link>
		<comments>http://www.jeremiahtolbert.com/2008/04/clay-shirky-and-the-cognitive-surplus/#comments</comments>
		<pubDate>Tue, 29 Apr 2008 19:02:39 +0000</pubDate>
		<dc:creator>Jeremiah Tolbert</dc:creator>
				<category><![CDATA[Science]]></category>
		<category><![CDATA[SF Business]]></category>
		<category><![CDATA[Top Post]]></category>
		<category><![CDATA[Clay Shirky]]></category>
		<category><![CDATA[Social Surplus]]></category>
		<category><![CDATA[television]]></category>
		<category><![CDATA[Wikipedia]]></category>

		<guid isPermaLink="false">http://www.jeremiahtolbert.com/2008/clay-shirky-and-the-cognitive-surplus/</guid>
		<description><![CDATA[Continuing on the thoughts of yesterday’s post, I’ve recently read Clay Shirky’s speech, “Gin, Television, and Social Surplus.” You can read a transcript of it, or watch a video. I highly recommend checking out one or the other and coming back here. I’ll wait. For the lazy, here”s a choice bit that explains much of [...]]]></description>
			<content:encoded><![CDATA[<p>Continuing on the thoughts of <a href="http://www.jeremiahtolbert.com/2008/the-paradox-of-choice/" title="The Paradox of Choice">yesterday’s post</a>, I’ve recently read <a href="http://en.wikipedia.org/wiki/Clay_Shirky" title="Clay Shirky" rel="wikipedia" target="_blank" class="zem_slink">Clay Shirky</a>’s speech, “Gin, Television, and Social Surplus.”  You can read a <a href="http://www.herecomeseverybody.org/2008/04/looking-for-the-mouse.html" title="Gin, Television, and the Social Surplus">transcript of it</a>, or <a href="http://blip.tv/file/855937" title="Shirky's Talk (Video)">watch a video</a>.  I highly recommend checking out one or the other and coming back here.  I’ll wait.  For the lazy, here”s a choice bit that explains much of it:</p>
<blockquote><p>If I had to pick the critical technology for the 20th century, the bit of social lubricant without which the wheels would’ve come off the whole enterprise, I’d say it was the sitcom.  Starting with the Second World War a whole series of things happened–rising GDP per capita, rising educational attainment, rising life expectancy and, critically, a rising number of people who were working five-day work weeks. For the first time, society forced onto an enormous number of its citizens the requirement to manage something they had never had to manage before–free time.</p>
<p>And what did we do with that free time?  Well, mostly we spent it watching TV.</p>
<p>…</p>
<p>And this is the other thing about the size of the cognitive surplus we’re talking about.  It’s so large that even a small change could have huge ramifications.  Let’s say that everything stays 99 percent the same, that people watch 99 percent as much television as they used to, but 1 percent of that is carved out for producing and for sharing.  The Internet-connected population watches roughly a <em>trillion</em> hours of TV a year.  That’s about five times the size of the annual U.S. consumption. One per cent of that  is 100 Wikipedia projects per year worth of participation.</p></blockquote>
<p><img src="http://ecx.images-amazon.com/images/I/51J9dkg5-oL._SL500_AA240_.jpg" alt="Here Comes Everybody by Clay Shirky" title="Here Comes Everybody by Clay Shirky" style="border: 0pt none ; float: right" align="right" height="240" width="240" /> Pretty cool, huh?   I think Clay is describing the underlying force behind <a href="http://nytimes.com/" title="The New York Times" rel="homepage" target="_blank" class="zem_slink">the New York Times</a> article from yesterday.  The cognitive surplus is leading to many people using the time formerly soaked up by the one-way media to create things themselves, and to share them.  Which causes a glut in the choices for actually consuming, and results in the paradox of  choice.  Making things collaboratively like Wikipedia makes us happy, but having all those other options makes us unhappy.  Another paradox, of sorts.</p>
<p>Wikipedia is a bit of a different from, say, writing fan fiction, because Wikipedia has a core usefulness that is more broad in appeal.  You could say that Wikipedia provides a clear benefit to society, whereas the benefit to society of more fiction, or more music, or more photography is less readily apparent.  I’m not saying that your X-Files/Evil Dead crossover fanfic doesn’t provide a benefit. I just think it’s harder to make the case for it.  I’m not going to do it for you, anyway.</p>
<p>The real mind blower here for me is this idea of thinking about the cognitive surplus–not thinking about it as leisure time, but thinking about it as hours spent thinking.  That surplus has always existed, but something about the Internet has provided an entirely new means of tapping into it.  Sure, some have chosen to express their surplus by launching flame wars over which <a href="http://www.bbc.co.uk/doctorwho/" title="Doctor Who, BBC">Doctor</a> was the best (clearly the 7th), but I think Shirky is right in pointing out that this is all embryonic still.  We’re going to see some amazing things soon.  What forms will they take?  My thinking along these lines before was limited to the idea of crowdsourcing, but I’m starting to see that it’s so much more than that. I really need to read Shirky’s book, <a href="http://www.amazon.com/Here-Comes-Everybody-Organizing-Organizations/dp/1594201536" title="Amazon"><em>Here Comes Everybody.</em></a></p>
<p>What problems can we solve using the internet and our cognitive surplus?</p>
<fieldset class="zemanta-related" style="margin: 0.5em 0pt 1em; padding: 0pt">
<legend class="zemanta-title">Related articles</legend>
<ul class="zemanta-article-ul" style="margin: 1em 0pt 1.5em; padding: 0pt">
<li class="zemanta-article" style="margin: 0.5em 2em"><a href="http://www.herecomeseverybody.org/2008/04/looking-for-the-mouse.html" title="Open in new window" target="_blank">Gin, Television, and Social Surplus</a> [via Zemanta]</li>
<li class="zemanta-article" style="margin: 0.5em 2em"><a href="http://mobhappy.com/blog1/2008/04/29/clay-shirky-gin-tv-and-social-surplus/" title="Open in new window" target="_blank">Clay Shirky, Gin, TV and Social Surplus</a> [via Zemanta]</li>
<li class="zemanta-article" style="margin: 0.5em 2em"><a href="http://www.kottke.org/remainder/08/04/15539.html" title="Open in new window" target="_blank">At the Web 2.0 conference, Clay Shirky gave a talk called…</a> [via Zemanta]</li>
<li class="zemanta-article" style="margin: 0.5em 2em"><a href="http://techdirt.com/articles/20080427/080850959.shtml" title="Open in new window" target="_blank">How Do People Find The Time To Watch Television?</a> [via Zemanta]</li>
<li class="zemanta-article" style="margin: 0.5em 2em"><a href="http://www.boingboing.net/2008/04/27/death-of-the-sitcom.html" title="Open in new window" target="_blank">Death of the sitcom frees up 2,000 Wikipedias worth of cognitive capacity</a> [via Zemanta]</li>
<li class="zemanta-article" style="margin: 0.5em 2em"><a href="http://www.brianalvey.com/news/2008/04/27/get-shirky/" title="Open in new window" target="_blank">Get Shirky</a> [via Zemanta]</li>
<li class="zemanta-article" style="margin: 0.5em 2em"><a href="http://johnaugust.com/archives/2008/time-spent-thinking" title="Open in new window" target="_blank">Time spent thinking</a> [via Zemanta]</li>
</ul>
</fieldset>
]]></content:encoded>
			<wfw:commentRss>http://www.jeremiahtolbert.com/2008/04/clay-shirky-and-the-cognitive-surplus/feed/</wfw:commentRss>
		<slash:comments>5</slash:comments>
		</item>
		<item>
		<title>Memories of Africa</title>
		<link>http://www.jeremiahtolbert.com/2008/02/memories-of-africa/</link>
		<comments>http://www.jeremiahtolbert.com/2008/02/memories-of-africa/#comments</comments>
		<pubDate>Fri, 01 Feb 2008 19:22:52 +0000</pubDate>
		<dc:creator>Jeremiah Tolbert</dc:creator>
				<category><![CDATA[Science]]></category>
		<category><![CDATA[Africa]]></category>
		<category><![CDATA[elephants]]></category>
		<category><![CDATA[personal]]></category>
		<category><![CDATA[travel]]></category>
		<category><![CDATA[Tsavo]]></category>
		<category><![CDATA[wildlife]]></category>

		<guid isPermaLink="false">http://www.jeremiahtolbert.com/2008/memories-of-africa/</guid>
		<description><![CDATA[Besides my ostrich encounter, there were really only two occasions where I felt that my life was threatened by wildlife in Kenya. There were several occasions of fearing for my life involving other people, but that’s another post.The incident happened in Tsavo. Tsavo is famous for one thing in particular. Man-eating lions. Around the turn [...]]]></description>
			<content:encoded><![CDATA[<p>Besides my ostrich encounter, there were really only two occasions where I felt that my life was threatened by wildlife in Kenya. There were several occasions of fearing for my life involving other people, but that’s another post.The incident happened in Tsavo. Tsavo is famous for one thing in particular. Man-eating lions. Around the turn of the century, Colonel Patterson was tasked with building a bridge for the British Empire (a bridge that still stands today, and is not remotely impressive). He watched in horror as worker after worker (mostly “coolies” from India) were dragged away, killed, and devoured. Eventually, Patterson killed two lions, but only after unbelievable difficulties. The lions were named The Ghost and The Darkness, and a film about this incident starring Val Kilmer came out in the mid-90s. The lions’ bodies are on display in the Chicago Museum of Natural History. They are male lions, but they have no manes. None of the male lions in Tsavo have them. Upon seeing the area, you would immediately realize why.</p>
<div class="photodropper"><a href="http://www.flickr.com/photos/14021251@N02/1855694532/" title="Elefanti Tsavo East" target="_blank"><img src="http://farm3.static.flickr.com/2243/1855694532_b91bd26733_m.jpg" alt="Elefanti Tsavo East" border="0" /></a><br />
<small><a href="http://creativecommons.org/licenses/by-nd/2.0/" title="Attribution-NoDerivs License" target="_blank"><img src="http://www.jeremiahtolbert.com/wp-content/plugins/photo_dropper/images/cc.png" alt="Creative Commons License" align="absmiddle" border="0" height="16" width="16" /></a> <a href="http://www.photodropper.com/photos/" target="_blank">photo</a> credit: <a href="http://www.flickr.com/photos/14021251@N02/1855694532/" title="Oscar&amp;Alessia" target="_blank">Oscar&amp;Alessia</a></small></div>
<p>Tsavo was green and dense with thorny thicket when we camped there. It was not like the rest of the African savannah. It is almost certain that the male lions of Tsavo do not have manes because if they did, they would never make it ten feet through the underbrush.</p>
<p>The first night we made camp, we could hear lions roaring as the sun set. It was the first time we had heard anything like it, and we were all thrilled. We put our tents, which were made for three people. After an evening around the fire, we all retired to our tents. I slept for a few hours, but woke some time after midnight with a pressing need to ah, relieve myself. There was only one problem.</p>
<p>The roaring continued, but it was much, much closer now. Without opening the tent, it sounded as if a lion was not more than 30 yards away. Another lion was answering this lion from the opposite side of our camp.</p>
<p>I tried to hold it as best I could, but eventually, I absolutely had to go to the bathroom. I roused my tent mates and we opened the ten flap just a bit and pointed our flashlights into the darkness. The eyes of something flashed green at the very edge of the light. The roaring stopped.</p>
<p>“Okay,” I said. “I’m going to step right outside the tent, and piss to the left. You guy watch those eyes, and if they start coming towards me, say something.” And that’s what I did. It seemed like I was urinating the contents of a small ocean. I kept my eyes on my business and did not look at the lion. If I did, I, well, froze up. Finally, I squeezed out the last drop of fluid and not even pausing to zip my fly, I dove inside the tent.</p>
<p>The eyes never moved. We sealed up the tent and went back to sleep as best we could with massive cats roaring all night. In the morning, the lions were gone.</p>
<p>I can’t remember where the second brush with death happened. It was either Tsavo also, or Amboseli. We were riding in a Land Rover down a muddy road in the park, and the brush was fairly thick on either side of the road. Everything that wasn’t green with life was a dark red from the clay mud. Wildlife was hard to spot. I stood on my seat, holding onto the edges of the hole in the roof, and scanned with binoculars, looking for something interesting. Then, the driver spotted it.</p>
<p>A bull elephant came out of the brush not even twenty feet from us. His skin was streaked red, and his tusks were almost four feet long. He took a hesitant step, then flared his great ears forward. I snapped a shot with my camera. Then, he charged.</p>
<p>Our driver gunned the engine, and we tore off down the road. The elephant stopped in the road behind us and raised his trunk in disdain. For less than a second, I was pretty sure I was going to be thrown from the Rover and trampled to death. Everyone in the vehicle laughed hysterically, and I mean that literally, for half an hour afterward.</p>
]]></content:encoded>
			<wfw:commentRss>http://www.jeremiahtolbert.com/2008/02/memories-of-africa/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Bt-cotton vs. the bollworm. Bollworm wins in 72 rounds!</title>
		<link>http://www.jeremiahtolbert.com/2008/01/bt-cotton-vs-the-bollworm-bollworm-wins-in-72-rounds/</link>
		<comments>http://www.jeremiahtolbert.com/2008/01/bt-cotton-vs-the-bollworm-bollworm-wins-in-72-rounds/#comments</comments>
		<pubDate>Tue, 08 Jan 2008 20:52:25 +0000</pubDate>
		<dc:creator>Jeremiah Tolbert</dc:creator>
				<category><![CDATA[Science]]></category>

		<guid isPermaLink="false">http://www.jeremiahtolbert.com/2008/bt-cotton-vs-the-bollworm-bollworm-wins-in-72-rounds/</guid>
		<description><![CDATA[First documented case of pest resistance to biotech cottonNature is wicked awesome. Let me show you. This story is about three organisms. First, we have cotton plants. Tasty, yummy cotton plants. Secondly, we have the bollworm, aka Helicoverpa zea. Finally, we have a little bacterium called Bacillus thuringiensis which produces a toxin that kills insects. [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://www.eurekalert.org/pub_releases/2008-02/uoa-fdc020508.php" title="First documented case of pest resistance to biotech cotton">First documented case of pest resistance to biotech cotton</a>Nature is <em>wicked awesome.</em>  Let me show you.</p>
<p>This story is about three organisms. First, we have cotton plants. Tasty, yummy cotton plants. Secondly, we have the bollworm, aka Helicoverpa zea. Finally, we have a little bacterium called Bacillus thuringiensis which produces a toxin that kills insects. We call that toxin Bt for short.</p>
<p>In 1996, some smart biologists decided to take the genes from B. thuringeiensis that produce those toxin proteins and insert them into the genome of the cotton plant (and potatoes and corn too). This served to make the cotton plants not so tasty to the bollworm. Tasty cotton plants become “ack-ack, plant of death!” to them. This was good because the cotton crop is worth $4.5 billion annually, and 70% of the damage caused to the crop is caused by catterpillars like the lowly bollworm.</p>
<p>All was well in the land of cotton for a while. But then in 2003, bollworms were found eating Bt-cotton plants! What gives? Evolution, baby!</p>
<p>Here are a few cool things about this. Places where bt-cotton is grown as a huge monoculture resulted in faster evolution of bt-resistance in the bollworm. Basically, the only bollworms that could be found to mate with had a tendency to be resistant, and so you got really fast resistance in the overall population. In places where bollworms could end up on non bt-resistant plants, the resistance developed much more slowly.</p>
<p>Now, of course the gengineers at Monsanto have upped the ante and produced a cotton variety that produces two varieties of Bt-toxin. For now, the bollworms are resistant to only one of those two. Soon, the scientists will develop another variant that kills the resistant bollworms and reset the clock.</p>
<p>So I looked it up, and the bollworms have a lifecycle of 30 days. BT cotton went out in 1996, and in 2003, we have levels of resistance large enough that we see it. That means in roughly 72 generations, H zea populations developed widespread resistance to the toxin.</p>
<p>There are two morals to this story. One: insects evolve really fast. Two: insects evolve resistance even faster when their environment is uniformly poisonous. Plant some normal plants here and there to provide refuges so that evolved resistance develops slower.</p>
<p>Think about the above the next time you spray everything you own with antibacterial soap.</p>
<p><a href="http://www.tuginternet.com/jeremy/archives/006732.html"></a></p>
]]></content:encoded>
			<wfw:commentRss>http://www.jeremiahtolbert.com/2008/01/bt-cotton-vs-the-bollworm-bollworm-wins-in-72-rounds/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>Whale Fall</title>
		<link>http://www.jeremiahtolbert.com/2007/10/whale-fall/</link>
		<comments>http://www.jeremiahtolbert.com/2007/10/whale-fall/#comments</comments>
		<pubDate>Fri, 12 Oct 2007 03:29:23 +0000</pubDate>
		<dc:creator>Jeremiah Tolbert</dc:creator>
				<category><![CDATA[My Writing]]></category>
		<category><![CDATA[Science]]></category>
		<category><![CDATA[Top Post]]></category>
		<category><![CDATA[death]]></category>
		<category><![CDATA[ecosystems]]></category>
		<category><![CDATA[whalefall]]></category>
		<category><![CDATA[whales]]></category>

		<guid isPermaLink="false">http://www.jeremiahtolbert.com/2007/whale-fall/</guid>
		<description><![CDATA[When a whale dies, an entire ecosystem blossoms in its corpse. Species of clams, worms, and other invertebrates can be found on the bones of a dead whale that cannot be found anywhere else. The “seeds” of these ecosystems seem to lay dormant in the benthos of the deep oceans, waiting for that one-in-a-million chance [...]]]></description>
			<content:encoded><![CDATA[<p>When a whale dies, an entire ecosystem blossoms in its corpse.  Species of clams, worms, and other invertebrates can be found on the bones of a dead whale that cannot be found anywhere else.  The “seeds” of these ecosystems seem to lay dormant in the benthos of the deep oceans, waiting for that one-in-a-million chance that a whale, it’s last breath escaping for the surface, will fall to the muck and mud.  Imagine being stranded in the desert, your only hope for flourishing in the form of a giant falling from the sky.  Tons and tons of meat and bone, providing nourishment and succor.  Later, sulfur-loving bacteria pick over the bones and release hydrogen sulfide, launching an entirely new ecosystem of chemosynthetic bacteria.  And it’s here where the diversity really gets wild, with nearly 200 different species making up the community, feeding on the bacteria, feeding on the feeders of the bacteria.</p>
<div class="photodropper"><a href="http://www.flickr.com/photos/25504128@N07/2442297529/" title="Swim in the sky" target="_blank"><img src="http://farm4.static.flickr.com/3249/2442297529_a9a4ba0b5a_m.jpg" alt="Swim in the sky" border="0" /></a><br />
<small><a href="http://creativecommons.org/licenses/by-nd/2.0/" title="Attribution-NoDerivs License" target="_blank"><img src="http://www.jeremiahtolbert.com/wp-content/plugins/photo_dropper/images/cc.png" alt="Creative Commons License" align="absmiddle" border="0" height="16" width="16" /></a> <a href="http://www.photodropper.com/photos/" target="_blank">photo</a> credit: <a href="http://www.flickr.com/photos/25504128@N07/2442297529/" title="t2s" target="_blank">t2s</a></small></div>
<p>I see no beauty in death.  I am terrified of it, as a general rule.  The loss of a human mind to the black maw of nothing is the only thing that frightens me, really.  My panic attacks, at their root, are all about my fear of death.  But, for some reason, I read about whale falls, and I am filled with awe and amazement.  There is beauty there, for me, and I don’t know why.  A great, amazing creature dies, and gives life to not just one, but several ecosystems, for years and years after its death.</p>
<p>I want my death, when it comes, if it comes (as I hope to catch the wave of life extension science and live for centuries–a foolish hope, but I cannot relinquish it), to be as beautiful and as generative as a whale fall.  I want what I have done in my life to create as much, perhaps.  And the fear of death that I have–maybe it’s because I know I haven’t done that yet.  Now would be too soon.  I’m not ready.  That’s what the attacks are about.  Not being ready.</p>
<p>I refuse to come to terms with the idea of my own mortality.  Not yet.  Not until I can die like the whales do.</p>
]]></content:encoded>
			<wfw:commentRss>http://www.jeremiahtolbert.com/2007/10/whale-fall/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
		<item>
		<title>On Terraforming</title>
		<link>http://www.jeremiahtolbert.com/2006/12/on-terraforming/</link>
		<comments>http://www.jeremiahtolbert.com/2006/12/on-terraforming/#comments</comments>
		<pubDate>Tue, 05 Dec 2006 04:01:58 +0000</pubDate>
		<dc:creator>Jeremiah Tolbert</dc:creator>
				<category><![CDATA[Science]]></category>
		<category><![CDATA[grass]]></category>
		<category><![CDATA[terraforming]]></category>
		<category><![CDATA[US]]></category>

		<guid isPermaLink="false">http://www.jeremiahtolbert.com/2006/on-terraforming/</guid>
		<description><![CDATA[On Terraforming I wrote the below for a mailing list the other day in response to a question about whether we’re terraforming our environments for good. I liked it, so I thought I would share it with you all: I think Americans terraform quite a bit, but they do so in a not-environmentally concious/protective ways. [...]]]></description>
			<content:encoded><![CDATA[<h3 class="title">On Terraforming</h3>
<p><!-- no debug -->I wrote the below for a mailing list the other day in response to a question about whether we’re terraforming our environments for good. I liked it, so I thought I would share it with you all:</p>
<p>I think Americans terraform quite a bit, but they do so in a not-environmentally concious/protective ways. Grass lawns and farm fields are two good examples. Grass species that are planted on your average lawn are in no way native to America (last I checked anyway). They are foreign species, and by planting them, we have created massive artificial habitats for no reason that I can discern–what, because we think grass is pretty and it’s easy on the feet?</p>
<p>Farms are also a form of terraforming. We took the world’s largest continous long-grass prairie and turned it into a massive food producing ecosystem (with 1/1000th of the biodiversity, but that’s a digression) (Actually, there’s some belief that many of the grass species that we found in the midwest when whites settled had actually been semi-cultivated by native americans for a few thousand years, and some anthropologists argue that it wasn’t really a native ecosystem at that point either. This brings up lots of debates in habitat restoration that I bet Melinda knows a hell of a lot more about than I do).</p>
<p>As part of this, we straightened the HELL out of every river we could, which had profound effects on flooding and river ecosystems. Did you know that if it wasn’t for the Army Core of Engineers, the Mississippi would enter the Gulf of Mexico somewhere dozens (hundreds?) of miles east of where it does now? I think I read that somewhere in a book about giant engineering projects “gone wrong.”</p>
<p>The Army Core of Engineers almost specializes in reformatting the landscape for human purposes. However, they don’t quite do it on the scale that you are talking about, and I think the main reason is, these buffer zones that were popular to discuss after Katrina are not “cost effective” simply because they would eat up valuable real estate that MUST BE DEVELOPED, THERE’S GOLD IN THEM THERE SWAMPS! In my opinion, nothing should ever be built on a flood plain, but flood plains are real estate, the most valuable “investment” you can make in America. Damn the future, build build BUILD!</p>
<p>I have been collecting a lot of links regarding architecture plans for building homes that are environmentally sustainable and that become a part of the landscape instead of paving it. There may very well be a movement afoot here, but it’s in Europe, not in the land of outsourcing and service industry (here).</p>
<p>The big projects you see of this sort in the future are almost all going to have to do with stealing/moving fresh water around to places where we shouldn’t have built really big, water-guzzling cities (IE: anything west of the rockies, minus the Pacific Northwest). I think it’s a race over whether a massive war is going to be fought over remaining oil or remaining fresh water. Our use of it far outstrips its availability and there is serious conflict ahead (assuming someone doesn’t invent some cheap and low-energy way of desalinization or something).</p>
<p>Finally, I recently read a short article on Deep Sea News about how huge chunks of the ocean have effectively been aquaformed by the process of deep sea trawling. Trawling may very well be THE most ecologically damaging practice we humans continue today. It destroys thousand year old deep sea corals and other habitat-necessary organisms in a matter of minutes. Imagine a giant hand coming out of the sky and scraping your city away, and you’re close to what this does. However, in the aftermath, the process seems to make a better home for some popular and tasty fishes, and the process is probably irreversable, so there’s an argument that once a nation has destroyed their waters this way, they should just keep doing it because we won’t see a recovery in centuries, perhaps millenia.</p>
<p>Oh, we’re shaping the world alright, is my basic opinion. We’re just doing it in search of a short term buck and damn the future. Damn it straight to the biggest goddamn mass extinction the world has seen yet.</p>
]]></content:encoded>
			<wfw:commentRss>http://www.jeremiahtolbert.com/2006/12/on-terraforming/feed/</wfw:commentRss>
		<slash:comments>0</slash:comments>
		</item>
	</channel>
</rss>

