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	<title>Comments on: Launching Satellites With A Magnetic Slingshot</title>
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	<link>http://www.ohgizmo.com/2007/01/03/launching-satellites-with-a-magnetic-slingshot/</link>
	<description>Deliciously Geeky...</description>
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		<title>By: Mark</title>
		<link>http://www.ohgizmo.com/2007/01/03/launching-satellites-with-a-magnetic-slingshot/comment-page-1/#comment-111565</link>
		<dc:creator>Mark</dc:creator>
		<pubDate>Thu, 04 Jan 2007 17:23:39 +0000</pubDate>
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		<description>At 180 pounds each, slinging some unwanted persons into outerspace is still out of reach for me. So how innovative is it really?</description>
		<content:encoded><![CDATA[<p>At 180 pounds each, slinging some unwanted persons into outerspace is still out of reach for me. So how innovative is it really?</p>
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		<title>By: Ron</title>
		<link>http://www.ohgizmo.com/2007/01/03/launching-satellites-with-a-magnetic-slingshot/comment-page-1/#comment-111358</link>
		<dc:creator>Ron</dc:creator>
		<pubDate>Thu, 04 Jan 2007 12:46:26 +0000</pubDate>
		<guid isPermaLink="false">http://www.ohgizmo.com/2007/01/03/launching-satellites-with-a-magnetic-slingshot/#comment-111358</guid>
		<description>The first linear accelerator was built in 1976.  Search for &quot;mass driver&quot; in wikipedia.

JB: If small size is a factor, then why is the picture at a salt flat (in the desert)?

Jason: And Arthur C. Clarke just wrote about communications satellites in 1945.  When they finally flew 15 years later, they weren&#039;t innovative.  The first mass driver prototype was built 30 YEARS ago.  This one may be successful, but hardly innovative.</description>
		<content:encoded><![CDATA[<p>The first linear accelerator was built in 1976.  Search for &#8220;mass driver&#8221; in wikipedia.</p>
<p>JB: If small size is a factor, then why is the picture at a salt flat (in the desert)?</p>
<p>Jason: And Arthur C. Clarke just wrote about communications satellites in 1945.  When they finally flew 15 years later, they weren&#8217;t innovative.  The first mass driver prototype was built 30 YEARS ago.  This one may be successful, but hardly innovative.</p>
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		<title>By: Jason</title>
		<link>http://www.ohgizmo.com/2007/01/03/launching-satellites-with-a-magnetic-slingshot/comment-page-1/#comment-110880</link>
		<dc:creator>Jason</dc:creator>
		<pubDate>Thu, 04 Jan 2007 04:35:16 +0000</pubDate>
		<guid isPermaLink="false">http://www.ohgizmo.com/2007/01/03/launching-satellites-with-a-magnetic-slingshot/#comment-110880</guid>
		<description>Robert Heinlein just wrote about it, these guys are doing it. I&#039;m not sure how much air pressure it would take to force 220lbs to 6 miles per second, but that seems a little too much like the old Air Jammer Road Rammer toys I got for Christmas about 25 years ago.</description>
		<content:encoded><![CDATA[<p>Robert Heinlein just wrote about it, these guys are doing it. I&#8217;m not sure how much air pressure it would take to force 220lbs to 6 miles per second, but that seems a little too much like the old Air Jammer Road Rammer toys I got for Christmas about 25 years ago.</p>
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		<title>By: Keith Miller</title>
		<link>http://www.ohgizmo.com/2007/01/03/launching-satellites-with-a-magnetic-slingshot/comment-page-1/#comment-110664</link>
		<dc:creator>Keith Miller</dc:creator>
		<pubDate>Thu, 04 Jan 2007 00:04:38 +0000</pubDate>
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		<description>Air pressure would be a better way to launch a satellite. It would be cheaper to build and easier as far as technology needed.</description>
		<content:encoded><![CDATA[<p>Air pressure would be a better way to launch a satellite. It would be cheaper to build and easier as far as technology needed.</p>
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		<title>By: JB</title>
		<link>http://www.ohgizmo.com/2007/01/03/launching-satellites-with-a-magnetic-slingshot/comment-page-1/#comment-110426</link>
		<dc:creator>JB</dc:creator>
		<pubDate>Wed, 03 Jan 2007 18:38:17 +0000</pubDate>
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		<description>Heinlein&#039;s (and most other concepts that I&#039;ve seen) was a linear accelerator, this launcher seems to use multiple trips around a ring to get up to speed and then sends the launch package to the ramp tangentially.  This could result in a fairly significant reduction in the size of the launch site, which would have some significant advantages. More available site locations and a much smaller area requiring security come readily to mind.</description>
		<content:encoded><![CDATA[<p>Heinlein&#8217;s (and most other concepts that I&#8217;ve seen) was a linear accelerator, this launcher seems to use multiple trips around a ring to get up to speed and then sends the launch package to the ramp tangentially.  This could result in a fairly significant reduction in the size of the launch site, which would have some significant advantages. More available site locations and a much smaller area requiring security come readily to mind.</p>
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		<title>By: Ron</title>
		<link>http://www.ohgizmo.com/2007/01/03/launching-satellites-with-a-magnetic-slingshot/comment-page-1/#comment-110155</link>
		<dc:creator>Ron</dc:creator>
		<pubDate>Wed, 03 Jan 2007 13:09:31 +0000</pubDate>
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		<description>How innovative can it be?  Robert Heinlein described such an accelerator in his 1965 novel &quot;The moon is a harsh mistress&quot;</description>
		<content:encoded><![CDATA[<p>How innovative can it be?  Robert Heinlein described such an accelerator in his 1965 novel &#8220;The moon is a harsh mistress&#8221;</p>
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