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	<title>Comments on: Bush talks space</title>
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	<description>Because sometimes the most important orbit is the Beltway...</description>
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		<title>By: Ed Minchau</title>
		<link>http://www.spacepolitics.com/2005/08/02/bush-talks-space/#comment-3960</link>
		<dc:creator><![CDATA[Ed Minchau]]></dc:creator>
		<pubDate>Wed, 03 Aug 2005 21:26:58 +0000</pubDate>
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		<description><![CDATA[Bob, ALL aircraft carriers display the Mission Accomplished banner at the end of their missions.
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		<content:encoded><![CDATA[<p>Bob, ALL aircraft carriers display the Mission Accomplished banner at the end of their missions.</p>
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		<title>By: Bob</title>
		<link>http://www.spacepolitics.com/2005/08/02/bush-talks-space/#comment-3959</link>
		<dc:creator><![CDATA[Bob]]></dc:creator>
		<pubDate>Wed, 03 Aug 2005 19:44:37 +0000</pubDate>
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		<description><![CDATA[&quot;Funny, I&#039;ve heard him say that this war will last for decades. Continue on in your (off-topic) delusions, though.&quot;

The &quot;global war on terror&quot;, yes, he said would last for a long time.  That has been clear from early on.  The Iraqi situation (especially the Iraqi insurgency) is a different matter that the administration has repeated many times would not last long or would end soon.  Surely you remember the symbolism from Bush&#039;s Aircraft Carrier speech with the sign &quot;Mission Accomplished&quot;.  I also remember Cheney commenting a few months ago that the Iraqi insurgency is in its last breath.  Continue in your (off-topic) rewriting of the Bush Administration&#039;s stance, though.]]></description>
		<content:encoded><![CDATA[<p>&#8220;Funny, I&#8217;ve heard him say that this war will last for decades. Continue on in your (off-topic) delusions, though.&#8221;</p>
<p>The &#8220;global war on terror&#8221;, yes, he said would last for a long time.  That has been clear from early on.  The Iraqi situation (especially the Iraqi insurgency) is a different matter that the administration has repeated many times would not last long or would end soon.  Surely you remember the symbolism from Bush&#8217;s Aircraft Carrier speech with the sign &#8220;Mission Accomplished&#8221;.  I also remember Cheney commenting a few months ago that the Iraqi insurgency is in its last breath.  Continue in your (off-topic) rewriting of the Bush Administration&#8217;s stance, though.</p>
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		<title>By: Rand Simberg</title>
		<link>http://www.spacepolitics.com/2005/08/02/bush-talks-space/#comment-3958</link>
		<dc:creator><![CDATA[Rand Simberg]]></dc:creator>
		<pubDate>Wed, 03 Aug 2005 16:31:02 +0000</pubDate>
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		<description><![CDATA[&lt;em&gt;His administration stated something to that effect many times, and continues to do so.&lt;/em&gt;

Funny, I&#039;ve heard him say that this war will last for decades.  Continue on in your (off-topic) delusions, though.]]></description>
		<content:encoded><![CDATA[<p><em>His administration stated something to that effect many times, and continues to do so.</em></p>
<p>Funny, I&#8217;ve heard him say that this war will last for decades.  Continue on in your (off-topic) delusions, though.</p>
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		<title>By: Greg Kuperberg</title>
		<link>http://www.spacepolitics.com/2005/08/02/bush-talks-space/#comment-3957</link>
		<dc:creator><![CDATA[Greg Kuperberg]]></dc:creator>
		<pubDate>Wed, 03 Aug 2005 16:05:43 +0000</pubDate>
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		<description><![CDATA[I see no remotely complete argument from Brad Blair that lunar propellant production is realistic.  All of it is in the category of &quot;if you really, really wanted lunar propellant production to be useful, here is how you could try.&quot;  All of it depends on blithe assumptions about the quality of lunar ice and what tools there will be on the moon.  The tools that will be available is anybody&#039;s guess.  The tangible bad news from Aricebo is that lunar ice sucks, where it exists at all.  But there is an attitude in some VSE circles that only good news about lunar ice is worth discussing.

For that matter, Blair has staked his career on yes answers to the question of lunar ISRU.  If people believe that lunar ISRU looks good, whether or not it actually does, that helps his career.  So his position on this is not neutral.  I am not saying that he is dishonest; he seems honest enough.  The point is that his interest is in discussing how lunar ISRU could be useful, not whether it is useful.]]></description>
		<content:encoded><![CDATA[<p>I see no remotely complete argument from Brad Blair that lunar propellant production is realistic.  All of it is in the category of &#8220;if you really, really wanted lunar propellant production to be useful, here is how you could try.&#8221;  All of it depends on blithe assumptions about the quality of lunar ice and what tools there will be on the moon.  The tools that will be available is anybody&#8217;s guess.  The tangible bad news from Aricebo is that lunar ice sucks, where it exists at all.  But there is an attitude in some VSE circles that only good news about lunar ice is worth discussing.</p>
<p>For that matter, Blair has staked his career on yes answers to the question of lunar ISRU.  If people believe that lunar ISRU looks good, whether or not it actually does, that helps his career.  So his position on this is not neutral.  I am not saying that he is dishonest; he seems honest enough.  The point is that his interest is in discussing how lunar ISRU could be useful, not whether it is useful.</p>
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		<title>By: Bob</title>
		<link>http://www.spacepolitics.com/2005/08/02/bush-talks-space/#comment-3956</link>
		<dc:creator><![CDATA[Bob]]></dc:creator>
		<pubDate>Wed, 03 Aug 2005 15:37:24 +0000</pubDate>
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		<description><![CDATA[Reminds me of when he said something like &quot;I am confident Iraq will be quickly over with.&quot;

Noting that you&#039;re dragging this way off topic now, how can it remind you of something he never said?
Posted by Rand Simberg at August 2, 2005 02:20 PM 
--

His administration stated something to that effect many times, and continues to do so.]]></description>
		<content:encoded><![CDATA[<p>Reminds me of when he said something like &#8220;I am confident Iraq will be quickly over with.&#8221;</p>
<p>Noting that you&#8217;re dragging this way off topic now, how can it remind you of something he never said?<br />
Posted by Rand Simberg at August 2, 2005 02:20 PM<br />
&#8212;</p>
<p>His administration stated something to that effect many times, and continues to do so.</p>
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		<title>By: Rand Simberg</title>
		<link>http://www.spacepolitics.com/2005/08/02/bush-talks-space/#comment-3955</link>
		<dc:creator><![CDATA[Rand Simberg]]></dc:creator>
		<pubDate>Wed, 03 Aug 2005 14:59:09 +0000</pubDate>
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		<description><![CDATA[&lt;em&gt;The analysis shows that, with current understanding of the available technology for propellant production, transportation systems, and the market for launch of vehicles between LEO-GEO, it is difficult to demonstrate that a viable commercial opportunity exists to serve that market with lunar propellant.&lt;/em&gt;

Which is a statement I&#039;d agree with,and has zero to do with using it to go to Mars.  Perhaps you don&#039;t understand orbital mechanics?

Just keep digging, Greg.]]></description>
		<content:encoded><![CDATA[<p><em>The analysis shows that, with current understanding of the available technology for propellant production, transportation systems, and the market for launch of vehicles between LEO-GEO, it is difficult to demonstrate that a viable commercial opportunity exists to serve that market with lunar propellant.</em></p>
<p>Which is a statement I&#8217;d agree with,and has zero to do with using it to go to Mars.  Perhaps you don&#8217;t understand orbital mechanics?</p>
<p>Just keep digging, Greg.</p>
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		<title>By: Greg Kuperberg</title>
		<link>http://www.spacepolitics.com/2005/08/02/bush-talks-space/#comment-3954</link>
		<dc:creator><![CDATA[Greg Kuperberg]]></dc:creator>
		<pubDate>Wed, 03 Aug 2005 14:32:04 +0000</pubDate>
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		<description><![CDATA[My distinction between a so-called mining engineer and a real one is that a real mining engineer respects the judgment of geologists.  I would hope that Brad Blair wouldn&#039;t dismiss Bruce Murray &amp;mdash or any other geologist &amp;mbdash because he&#039;s merely a scientist and not an engineer.  Although since you are arguing by authority, I note that Brad Blair&#039;s credentials consist of a recent master&#039;s degree in engineering (from the Colorado School of Mines).  As engineering credentials go, this is hardly equivalent to Bruce Murray&#039;s 30-year career in spaceflight engineering and planetary geology.  If Jack Schmitt flew on Apollo 17, that also doesn&#039;t trump engineering experience.  I&#039;ve been to the Gulf of Mexico, but that doesn&#039;t make me an oil rig engineer.

But I personally don&#039;t like to argue by authority; I prefer to see what people actually have to say.  I find this sentence in the abstract of &lt;a href=&quot;http://dx.doi.org/10.1016/S0273-1177(03)00550-7&quot; rel=&quot;nofollow&quot;&gt;a paper&lt;/a&gt; by Duke, Blair, and Diaz:&lt;blockquote&gt;The analysis shows that, with current understanding of the available technology for propellant production, transportation systems, and the market for launch of vehicles between LEO-GEO, it is difficult to demonstrate that a viable commercial opportunity exists to serve that market with lunar propellant.&lt;/blockquote&gt;That about sums it up.  Blair has devoted his early career to making lunar ISRU look useful, but in the case of lunar propellant, it&#039;s a tall order.  They say that it depends on the available technology &amp;mdash which is exactly my distinction between the forseeable and the unforseeable future.  They say that it also depends on the quality of lunar ice &amp;mdash which, according to &lt;a href=&quot;http://www.news.cornell.edu/releases/Nov03/radar.moonpoles.deb.html&quot; rel=&quot;nofollow&quot;&gt;Arecibo results&lt;/a&gt;, is as crappy as any ISRU researcher could imagine.  That is the point that Bruce Murray and a lot of other people are reiterating.

So there you have it.  The research literature yields no particular evidence that lunar propellant production is realistic.  Nonetheless Bush is confident that NASA will pull it off.  Faith-based government.]]></description>
		<content:encoded><![CDATA[<p>My distinction between a so-called mining engineer and a real one is that a real mining engineer respects the judgment of geologists.  I would hope that Brad Blair wouldn&#8217;t dismiss Bruce Murray &#038;mdash or any other geologist &#038;mbdash because he&#8217;s merely a scientist and not an engineer.  Although since you are arguing by authority, I note that Brad Blair&#8217;s credentials consist of a recent master&#8217;s degree in engineering (from the Colorado School of Mines).  As engineering credentials go, this is hardly equivalent to Bruce Murray&#8217;s 30-year career in spaceflight engineering and planetary geology.  If Jack Schmitt flew on Apollo 17, that also doesn&#8217;t trump engineering experience.  I&#8217;ve been to the Gulf of Mexico, but that doesn&#8217;t make me an oil rig engineer.</p>
<p>But I personally don&#8217;t like to argue by authority; I prefer to see what people actually have to say.  I find this sentence in the abstract of <a href="http://dx.doi.org/10.1016/S0273-1177(03)00550-7" rel="nofollow">a paper</a> by Duke, Blair, and Diaz:<br />
<blockquote>The analysis shows that, with current understanding of the available technology for propellant production, transportation systems, and the market for launch of vehicles between LEO-GEO, it is difficult to demonstrate that a viable commercial opportunity exists to serve that market with lunar propellant.</p></blockquote>
<p>That about sums it up.  Blair has devoted his early career to making lunar ISRU look useful, but in the case of lunar propellant, it&#8217;s a tall order.  They say that it depends on the available technology &#038;mdash which is exactly my distinction between the forseeable and the unforseeable future.  They say that it also depends on the quality of lunar ice &#038;mdash which, according to <a href="http://www.news.cornell.edu/releases/Nov03/radar.moonpoles.deb.html" rel="nofollow">Arecibo results</a>, is as crappy as any ISRU researcher could imagine.  That is the point that Bruce Murray and a lot of other people are reiterating.</p>
<p>So there you have it.  The research literature yields no particular evidence that lunar propellant production is realistic.  Nonetheless Bush is confident that NASA will pull it off.  Faith-based government.</p>
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		<title>By: Rand Simberg</title>
		<link>http://www.spacepolitics.com/2005/08/02/bush-talks-space/#comment-3953</link>
		<dc:creator><![CDATA[Rand Simberg]]></dc:creator>
		<pubDate>Wed, 03 Aug 2005 05:25:51 +0000</pubDate>
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		<description><![CDATA[Oh, Greg, and if you insist on names of &quot;so-called&quot; mining engineers, go argue with &lt;a href=&quot;http://www.spaceagepub.com/pdfs/Blair.pdf&quot; rel=&quot;nofollow&quot;&gt;Brad Blair&lt;/a&gt;.]]></description>
		<content:encoded><![CDATA[<p>Oh, Greg, and if you insist on names of &#8220;so-called&#8221; mining engineers, go argue with <a href="http://www.spaceagepub.com/pdfs/Blair.pdf" rel="nofollow">Brad Blair</a>.</p>
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		<title>By: Rand Simberg</title>
		<link>http://www.spacepolitics.com/2005/08/02/bush-talks-space/#comment-3952</link>
		<dc:creator><![CDATA[Rand Simberg]]></dc:creator>
		<pubDate>Wed, 03 Aug 2005 05:15:13 +0000</pubDate>
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		<description><![CDATA[&lt;em&gt;A so-called mining engineer who dismisses geologists is neither an engineer nor a scientist; &lt;/em&gt;

A &quot;so-called&quot; mining engineer?  Do you have a different name for mining engineers?

If you want to play dueling geologists, Jack Schmitt seems to think it&#039;s a reasonable idea, and unlike your hero Bruce Murray, he&#039;s actually been there.

And I&#039;m not moving any bars.  Unlike you, I&#039;m claiming that it could be in the &lt;b&gt;foreseeable&lt;/b&gt; future.  You continue to claim with faux authority that it won&#039;t, though you have no real arguments to back up your claim.]]></description>
		<content:encoded><![CDATA[<p><em>A so-called mining engineer who dismisses geologists is neither an engineer nor a scientist; </em></p>
<p>A &#8220;so-called&#8221; mining engineer?  Do you have a different name for mining engineers?</p>
<p>If you want to play dueling geologists, Jack Schmitt seems to think it&#8217;s a reasonable idea, and unlike your hero Bruce Murray, he&#8217;s actually been there.</p>
<p>And I&#8217;m not moving any bars.  Unlike you, I&#8217;m claiming that it could be in the <b>foreseeable</b> future.  You continue to claim with faux authority that it won&#8217;t, though you have no real arguments to back up your claim.</p>
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		<title>By: Edward Wright</title>
		<link>http://www.spacepolitics.com/2005/08/02/bush-talks-space/#comment-3951</link>
		<dc:creator><![CDATA[Edward Wright]]></dc:creator>
		<pubDate>Wed, 03 Aug 2005 01:07:56 +0000</pubDate>
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		<description><![CDATA[&gt; Smokey O&#039;Keefe said &quot;we get it&quot; ... well maybe the most important signal lately
&gt; is that the politicians are getting it and acknowledging it - the fact that
&gt; human spaceflight is risky business.

If you think O&#039;Keefe &quot;got it,&quot; then it&#039;s not surprising you&#039;re afraid of cargo vehicles having pilots. Acknowledging risk is not the same as hiding in the closet.

&gt; Focus on crew safety / survival. Otherwise, why even have a human spaceflight
&gt; program if the goal is not to keep the human alive. To strive for less means
&gt; to robotize more. 

Are you deliberately misquoting me? You&#039;re the one who&#039;s argued that cargo vehicles need to be robotized, not I. 

If your only goal is to keep humans alive at all costs, then humans can never go anywhere, whether it&#039;s Hubble, Mars, or the corner market. 

&gt; Mr. (W)right is Wrong 

Interesting that the people who resort to namecalling are usually the same people who hide behind pseudonyms. 

Toro means &quot;bull,&quot; doesn&#039;t it? :-)]]></description>
		<content:encoded><![CDATA[<p>> Smokey O&#8217;Keefe said &#8220;we get it&#8221; &#8230; well maybe the most important signal lately<br />
> is that the politicians are getting it and acknowledging it &#8211; the fact that<br />
> human spaceflight is risky business.</p>
<p>If you think O&#8217;Keefe &#8220;got it,&#8221; then it&#8217;s not surprising you&#8217;re afraid of cargo vehicles having pilots. Acknowledging risk is not the same as hiding in the closet.</p>
<p>> Focus on crew safety / survival. Otherwise, why even have a human spaceflight<br />
> program if the goal is not to keep the human alive. To strive for less means<br />
> to robotize more. </p>
<p>Are you deliberately misquoting me? You&#8217;re the one who&#8217;s argued that cargo vehicles need to be robotized, not I. </p>
<p>If your only goal is to keep humans alive at all costs, then humans can never go anywhere, whether it&#8217;s Hubble, Mars, or the corner market. </p>
<p>> Mr. (W)right is Wrong </p>
<p>Interesting that the people who resort to namecalling are usually the same people who hide behind pseudonyms. </p>
<p>Toro means &#8220;bull,&#8221; doesn&#8217;t it? <img src="http://www.spacepolitics.com/wp-includes/images/smilies/icon_smile.gif" alt=":-)" class="wp-smiley" /></p>
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