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	<title>Comments on: Pop-bottle rocket headed into&#160;orbit?</title>
	<atom:link href="http://boingboing.net/2008/02/18/popbottle-rocket-hea.html/feed" rel="self" type="application/rss+xml" />
	<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html</link>
	<description>Brain candy for Happy Mutants</description>
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	<item>
		<title>By: FuelModel3</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-127236</link>
		<dc:creator>FuelModel3</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-127236</guid>
		<description>You can see videos of the launch and evolution of the rockets here:
http://www.youtube.com/user/antigravityresearch
</description>
		<content:encoded><![CDATA[<p>You can see videos of the launch and evolution of the rockets here:<br />
<a href="http://www.youtube.com/user/antigravityresearch" rel="nofollow">http://www.youtube.com/user/antigravityresearch</a></p>
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		<title>By: MrScience</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-127238</link>
		<dc:creator>MrScience</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-127238</guid>
		<description>@ #1 If you were indeed interested in the answer to your question, you may have found the article a fascinating read:

&quot;But he won&#039;t be launching that from his pasture near Chilliwack. He acknowledged he&#039;ll need a proper site where passing airplanes would not be at risk - something along the lines of the military test facility at Cold Lake, Alta.&quot;
</description>
		<content:encoded><![CDATA[<p>@ #1 If you were indeed interested in the answer to your question, you may have found the article a fascinating read:</p>
<p>&#8220;But he won&#8217;t be launching that from his pasture near Chilliwack. He acknowledged he&#8217;ll need a proper site where passing airplanes would not be at risk &#8211; something along the lines of the military test facility at Cold Lake, Alta.&#8221;</p>
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	<item>
		<title>By: wgmleslie</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-127267</link>
		<dc:creator>wgmleslie</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-127267</guid>
		<description>5 km is nowhere near orbital (or even sub-orbital) altitude.  Be that as it may, the technology is still pretty awesome.

From Wikipedia:  &lt;i&gt;The KÃ¡rmÃ¡n line lies at an altitude of 100 km (62.1 miles) above the Earth&#039;s surface, and is commonly used to define the boundary between the Earth&#039;s atmosphere and outer space.[1] This definition is accepted by the FÃ©dÃ©ration AÃ©ronautique Internationale (FAI), which is an international standard setting and record-keeping body for aeronautics and astronautics.&lt;/i&gt;</description>
		<content:encoded><![CDATA[<p>5 km is nowhere near orbital (or even sub-orbital) altitude.  Be that as it may, the technology is still pretty awesome.</p>
<p>From Wikipedia:  <i>The KÃ¡rmÃ¡n line lies at an altitude of 100 km (62.1 miles) above the Earth&#8217;s surface, and is commonly used to define the boundary between the Earth&#8217;s atmosphere and outer space.[1] This definition is accepted by the FÃ©dÃ©ration AÃ©ronautique Internationale (FAI), which is an international standard setting and record-keeping body for aeronautics and astronautics.</i></p>
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	<item>
		<title>By: backload</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-127270</link>
		<dc:creator>backload</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-127270</guid>
		<description>If he sent it up part of the way suspended under a balloon, he could do it. It would concentrate his fuel load for the hard part - up where the atmosphere is much thinner and his expanding CO2 would deliver that bit more velocity.</description>
		<content:encoded><![CDATA[<p>If he sent it up part of the way suspended under a balloon, he could do it. It would concentrate his fuel load for the hard part &#8211; up where the atmosphere is much thinner and his expanding CO2 would deliver that bit more velocity.</p>
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	<item>
		<title>By: Maurik</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-127299</link>
		<dc:creator>Maurik</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-127299</guid>
		<description>@#7

I agree, and no need for fancy-pants Wikipedia-ing to show that 5kms is way sub orbit. I mean, jets fly over 10kms!

It&#039;s pretty cool that he&#039;s able to do that, but to be fair, people claiming that space is anything below 100kms annoys me. Especially calling it orbit is lame, because there&#039;s actually no chance a bottle rocket could orbit earth at such altitudes.</description>
		<content:encoded><![CDATA[<p>@#7</p>
<p>I agree, and no need for fancy-pants Wikipedia-ing to show that 5kms is way sub orbit. I mean, jets fly over 10kms!</p>
<p>It&#8217;s pretty cool that he&#8217;s able to do that, but to be fair, people claiming that space is anything below 100kms annoys me. Especially calling it orbit is lame, because there&#8217;s actually no chance a bottle rocket could orbit earth at such altitudes.</p>
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	<item>
		<title>By: Nelson.C</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-127363</link>
		<dc:creator>Nelson.C</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-127363</guid>
		<description>CO2 sounds a bit heavy. Wouldn&#039;t he get better performance from N2?</description>
		<content:encoded><![CDATA[<p>CO2 sounds a bit heavy. Wouldn&#8217;t he get better performance from N2?</p>
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	<item>
		<title>By: Anonymous</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-431760</link>
		<dc:creator>Anonymous</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-431760</guid>
		<description>this is why canadians rok!!!</description>
		<content:encoded><![CDATA[<p>this is why canadians rok!!!</p>
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	<item>
		<title>By: Santos</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-127412</link>
		<dc:creator>Santos</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-127412</guid>
		<description>Perhaps he is launching the rocket from 5Km up using balloons as a launch pad?


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		<content:encoded><![CDATA[<p>Perhaps he is launching the rocket from 5Km up using balloons as a launch pad?</p>
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	<item>
		<title>By: sally599</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-127180</link>
		<dc:creator>sally599</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-127180</guid>
		<description>Please tell me this guy is not near any flight paths.  I mean its cool and all but do people have to check for things like airplanes before they launch this kind of thing?  </description>
		<content:encoded><![CDATA[<p>Please tell me this guy is not near any flight paths.  I mean its cool and all but do people have to check for things like airplanes before they launch this kind of thing?  </p>
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	<item>
		<title>By: Jeff</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-127186</link>
		<dc:creator>Jeff</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-127186</guid>
		<description>Only his experiment will tell. Low orbit at best; there isn&#039;t enough energy in liquid CO2, the expanssion rate and thrust drops off too quickly to place anykind of payload in orbit.</description>
		<content:encoded><![CDATA[<p>Only his experiment will tell. Low orbit at best; there isn&#8217;t enough energy in liquid CO2, the expanssion rate and thrust drops off too quickly to place anykind of payload in orbit.</p>
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	<item>
		<title>By: highjumpman</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-127442</link>
		<dc:creator>highjumpman</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-127442</guid>
		<description>It&#039;ll only be a short while before the DoD realizes their potential as low-cost mortars...</description>
		<content:encoded><![CDATA[<p>It&#8217;ll only be a short while before the DoD realizes their potential as low-cost mortars&#8230;</p>
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	<item>
		<title>By: mrfitz</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-127221</link>
		<dc:creator>mrfitz</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-127221</guid>
		<description>Have you seen the Astronaut Farmer?

</description>
		<content:encoded><![CDATA[<p>Have you seen the Astronaut Farmer?</p>
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	<item>
		<title>By: Gilbert Wham</title>
		<link>http://boingboing.net/2008/02/18/popbottle-rocket-hea.html#comment-127227</link>
		<dc:creator>Gilbert Wham</dc:creator>
		<pubDate>Wed, 30 Nov -0001 00:00:00 +0000</pubDate>
		<guid isPermaLink="false">#comment-127227</guid>
		<description>@ #1 Yes. Yes, they do. They design &lt;i&gt;rockets&lt;/i&gt;. For fun. Most of &#039;em know what they&#039;re doing...</description>
		<content:encoded><![CDATA[<p>@ #1 Yes. Yes, they do. They design <i>rockets</i>. For fun. Most of &#8216;em know what they&#8217;re doing&#8230;</p>
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