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	<title>Spin One Half &#187; Energy</title>
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	<description>Science, technology and media commentary for people who like to know things.</description>
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		<title>How anti-matter is not anything like dark matter.</title>
		<link>http://spin-onehalf.com/2009/07/how-anti-matter-is-not-anything-like-dark-matter/</link>
		<comments>http://spin-onehalf.com/2009/07/how-anti-matter-is-not-anything-like-dark-matter/#comments</comments>
		<pubDate>Fri, 10 Jul 2009 06:31:37 +0000</pubDate>
		<dc:creator>DrKuha</dc:creator>
				<category><![CDATA[Astronomy]]></category>
		<category><![CDATA[Energy]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Physics]]></category>
		<category><![CDATA[Captain Picard]]></category>
		<category><![CDATA[dark matter]]></category>
		<category><![CDATA[gamma rays]]></category>
		<category><![CDATA[higgs boson]]></category>
		<category><![CDATA[Luke Skywalker]]></category>
		<category><![CDATA[positrons]]></category>
		<category><![CDATA[string theory]]></category>
		<category><![CDATA[supernovae]]></category>
		<category><![CDATA[WIMPs]]></category>

		<guid isPermaLink="false">http://spin-onehalf.com/?p=359</guid>
		<description><![CDATA[I always sort of assumed that the galaxy far, far away (though, to be fair, all galaxies except the Milky Way are &#8220;far, far away&#8221;) was one of those theoretical galaxies made primarily out of anti-matter. Of course, if you lived in an anti-matter galaxy, you&#8217;d simply think of it as matter. To think that [...]]]></description>
			<content:encoded><![CDATA[<p><img src="http://spin-onehalf.com/blog/wp-content/uploads/2009/07/antimatter1.jpg" alt="picard meets skywalker" title="picard meets skywalker" width="500" class="aligncenter size-full wp-image-363" /></p>
<p>I always sort of assumed that the galaxy far, far away (though, to be fair, <em>all </em>galaxies except the Milky Way are &#8220;far, far away&#8221;) was one of those theoretical galaxies made primarily out of anti-matter.  Of course, if you lived in an anti-matter galaxy, you&#8217;d simply think of it as matter.  To think that the Star Wars galaxy is made out of anti-matter doesn&#8217;t explain anything about the Force or anything.  It just conjures up some interesting &#8220;what if?&#8221; scenarios.</p>
<p>Like what if Captain Picard met Luke Skywalker?  It just seems to me that a messiah meeting a man of science would definitely be awkward.  Though in this case, not for the obvious reasons.</p>
<p>So it&#8217;s often the case in science that you have two hypotheses that explain the same phenomenon.  This is a good thing in most cases, because it means that there are multiple avenues in which research and experimentation can be conducted.  Take, for example, the fact that there are a lot of unexplained gamma rays buzzing around the galaxy in an unexpected and unexplained distribution.  It&#8217;s a mystery that&#8217;s been plaguing astronomers and physicists for some time.</p>
<p>You have two possible explanations for it: it&#8217;s either evidence of dark matter (matter that is undetectable and yet makes up the vast majority of the mass in the universe and has only been observed via its gravitational effects) or it&#8217;s not.  In this case, <a href="http://www.sciencedaily.com/releases/2009/07/090708201840.htm">it&#8217;s not</a>.  I am not altogether certain if it was an unexpected discovery or if the researchers were specifically testing this positron hypothesis.</p>
<p>I find it interesting because, by itself, the fact that these positrons are being generated in supernovae, flying for millions of years only to annihilate the first time they come into contact with normal matter, is not that significant&#8211;though very cool.  It solves a nagging mystery that had, up until now, been considered possible evidence for dark matter.  But one thing it <em>does </em>do, in the search for dark matter, is narrow the search down.</p>
<p>I&#8217;m not sure if this rules out the possibility that Dark Matter is made of Weakly interacting massive particles (<a href="http://en.wikipedia.org/wiki/Weakly_interacting_massive_particles">WIMPs</a>)&#8211;focusing the search on other possible forms that dark matter might take&#8211;or if WIMPs are still on the table.</p>
<p>In the end, it&#8217;s what you make of it.  But dark matter, along with string theory and the Higgs boson, is one of those scientific enigmas that, if solved, would change our understanding of everything.  And speaking of string theory, one of its predictions <a href="http://www.sciencedaily.com/releases/2009/07/090706113702.htm">was confirmed and published</a>.  Totally sweet.</p>
<p><em>Singen Sie süße Lieder.</em></p>
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		<title>Why Fusion Power Isn&#8217;t Happening</title>
		<link>http://spin-onehalf.com/2009/05/why-fusion-power-isnt-happening/</link>
		<comments>http://spin-onehalf.com/2009/05/why-fusion-power-isnt-happening/#comments</comments>
		<pubDate>Mon, 01 Jun 2009 05:41:25 +0000</pubDate>
		<dc:creator>DrKuha</dc:creator>
				<category><![CDATA[Energy]]></category>
		<category><![CDATA[News]]></category>
		<category><![CDATA[Physics]]></category>
		<category><![CDATA[Speculation]]></category>
		<category><![CDATA[Technology]]></category>
		<category><![CDATA[bureaucracy]]></category>
		<category><![CDATA[fusion power]]></category>

		<guid isPermaLink="false">http://spin-onehalf.com/?p=239</guid>
		<description><![CDATA[In 1961, Kennedy said, &#8220;Hey, Russia. We saw your Sputnik, and that was cool. But hey, guess what? We&#8217;re going to put a dude on the moon. That&#8217;s right. That moon.&#8221; And we did. In 1969, Neil Armstrong ambulated in a way that was at once small and giant, once again proving that distance is [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://spin-onehalf.com/2009/05/why-fusion-power-isnt-happening/obama_new_goal/" rel="attachment wp-att-238"><img src="http://spin-onehalf.com/blog/wp-content/uploads/2009/05/obama_new_goal.jpg" alt="obama_new_goal" title="obama_new_goal" width="500" class="alignright size-full wp-image-238" /></a></p>
<p>In 1961, Kennedy said, &#8220;Hey, Russia.  We saw your Sputnik, and that was cool.  But hey, guess what?  We&#8217;re going to put a dude on the moon.  That&#8217;s right.  <em>That</em> moon.&#8221;</p>
<p>And we did.  In 1969, Neil Armstrong ambulated in a way that was at once small <em>and</em> giant, once again proving that distance is dependent on perception&#8211;without a doubt the most important discovery of the Apollo missions.</p>
<p>So that&#8217;s why <a href="http://www.nature.com/news/2009/090527/full/459488a.html">things like this </a>are really frustrating.  Why is it that this so complicated?  I would really like it if someone could explain to me why it takes fifteen years to build a nuclear reactor, when Wal-Mart can throw up a store in seven weeks?  Is it a question of money?  They&#8217;ve got the design already.  What is it that costs so much?</p>
<p>We used to be able to set a goal and meet it.  What went wrong?  Is it a matter of money?  Motivation?  Are we simply not smart enough?</p>
<p>What is this barrier that&#8217;s preventing us from cranking out a working tokamak in six months?  The design and the technology exist <em>today</em>.  If it&#8217;s a problem of motivation, perhaps it&#8217;s that we don&#8217;t have anybody with a forceful enough personality to come out and say, &#8220;Here&#8217;s how shit&#8217;s going down, so listen up.&#8221;  We need an Alexander.  We need a Genghis.  We need a freaking Kennedy.  And none of the old, red-faced, boring Kennedys.  We need the young Kennedy who told us we could land on the moon.  Nuclear fusion should be a walk in the park by comparison.  I had high hopes for Obama.  I&#8217;m not seeing the results that I want, but I haven&#8217;t given up on him.  Yet.</p>
<p>We know that there&#8217;s an astonishing amount of money locked up in hydrogen.  The math is solid and so is the physics.  It&#8217;s a given.  It&#8217;s clean energy.  It solves almost all of the energy problems that currently plague us.  It&#8217;s as abundant as stray cats in Rome.</p>
<p>The deputy director of the project says, &#8220;you really need to know whether the major components work. It&#8217;s absolutely clear that this is the right approach.&#8221;  I&#8217;m not so sure.  But I can see a couple of different perspectives.</p>
<p>It&#8217;s entirely likely that this is a situation where we have too many hands in the pot.  It&#8217;s great to see an international project that brings people together into a unified goal.  But when that goal is just a huge, inefficient money sink, then it&#8217;s not serving anyone&#8217;s needs.  My problem is the fact that this is actually something that we <em>need</em>.  This needs to happen or we&#8217;re all screwed.  Fifteen years is too long to wait for a solution to our budding energy crisis.  We need it like yesterday.</p>
<p>Maybe it wasn&#8217;t Kennedy that was our motivator.  Maybe it was the Russians.  It was a threat that the Russians were going to beat us to the moon that really kicked the space race into high gear.  What we need is the new millennium&#8217;s Russia.  Terrorism is obviously not it because they&#8217;re not strong enough, not pervasive enough, and nobody really takes them seriously.  There&#8217;s no palpable fear.  We need a threat the size of Russia during the Cold War to drive us toward what we&#8217;re actually capable of.  Alien invasion, maybe?</p>
<p>Perhaps the guy is right.  Maybe the fusion project actually <em>is</em> too big to complete without the kind of bureaucratic machine behind this one.  If that&#8217;s the case, then I have my doubts about whether we&#8217;re capable of such a feat.  I mean, look at the Large Hadron Collider.  It was proposed and approved in 1995.  Fourteen years ago, we decided to build it.  That means that it was theoretically possible for us to build it <em>fifteen years ago</em>.  This means that technology has not improved in that time.  It was beset by problems and delays and other nonsense and despite the fact that it was successfully activated, it broke pretty much right away.</p>
<p>If we extrapolate that out, assume that the same level of ineptitude is likely to plague this fusion project, there&#8217;s very little hope that this thing will be operational until 2050, far too late to solve any of our energy problems.</p>
<p>Our only option, as far as I can see, is to not hold our breaths on this one.  Our current attitude toward goal-setting is pretty loose.  In the 60&#8242;s we set goals and we met them.  We don&#8217;t really do that so much anymore.  Multiple sources of energy are going to be needed to fill the gaping hole left when oil prices get too high.  Solar, wind, and possibly good old fashioned nuclear fission.  Fusion is probably going to remain a pipe dream for some time yet.</p>
<p>Bummer.</p>
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