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	<title>Comments on: Squaring the circle</title>
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	<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/</link>
	<description>Out of the crooked timber of humanity, no straight thing was ever made</description>
	<lastBuildDate>Mon, 13 Feb 2012 05:39:10 +0000</lastBuildDate>
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		<title>By: Walt Pohl</title>
		<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/comment-page-1/#comment-77455</link>
		<dc:creator>Walt Pohl</dc:creator>
		<pubDate>Wed, 06 Jul 2005 23:46:06 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/?p=3511#comment-77455</guid>
		<description>Jeremy Gray has another book that&#039;s really good (though probably more technical than the book on non-Euclidean geometry), called &lt;a href=&quot;http://www.amazon.com/exec/obidos/tg/detail/-/0817633189/qid=1120693055/sr=1-18/ref=sr_1_18/104-1612328-1443913?v=glance&amp;s=books&quot; rel=&quot;nofollow&quot;&gt;
Linear Differential Equations and Group Theory from Riemann to Poincare&lt;/a&gt;.  It shows how geometric functions of a complex variable naturally are.  By telling the story historically, it reads like the mathematical analogue of a mystery novel.  At first you only see glimpses of what&#039;s going on, and then bigger and bigger hints, until finally everything is revealed.</description>
		<content:encoded><![CDATA[	<p>Jeremy Gray has another book that&#8217;s really good (though probably more technical than the book on non-Euclidean geometry), called <a href="http://www.amazon.com/exec/obidos/tg/detail/-/0817633189/qid=1120693055/sr=1-18/ref=sr_1_18/104-1612328-1443913?v=glance&#038;s=books" rel="nofollow"><br />
Linear Differential Equations and Group Theory from Riemann to Poincare</a>.  It shows how geometric functions of a complex variable naturally are.  By telling the story historically, it reads like the mathematical analogue of a mystery novel.  At first you only see glimpses of what&#8217;s going on, and then bigger and bigger hints, until finally everything is revealed.</p>
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	</item>
	<item>
		<title>By: James Wimberley</title>
		<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/comment-page-1/#comment-77431</link>
		<dc:creator>James Wimberley</dc:creator>
		<pubDate>Wed, 06 Jul 2005 21:40:08 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/?p=3511#comment-77431</guid>
		<description>The Halsted translation of Bolyai&#039;s &quot;Theory of absolute space&quot; is on the Web at http://www.hti.umich.edu/cgi/b/broker20/broker20?verb=Display&amp;protocol=CGM&amp;ver=1.0&amp;identifier=oai:lib.umich.edu:ACA7845.0001.001</description>
		<content:encoded><![CDATA[	<p>The Halsted translation of Bolyai&#8217;s &#8220;Theory of absolute space&#8221; is on the Web at <a href="http://www.hti.umich.edu/cgi/b/broker20/broker20?verb=Display&#038;protocol=CGM&#038;ver=1.0&#038;identifier=oai:lib.umich.edu:ACA7845.0001.001" rel="nofollow">http://www.hti.umich.edu/cgi/b/broker20/broker20?verb=Display&#038;protocol=CGM&#038;ver=1.0&#038;identifier=oai:lib.umich.edu:ACA7845.0001.001</a></p>
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	</item>
	<item>
		<title>By: Robert</title>
		<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/comment-page-1/#comment-76960</link>
		<dc:creator>Robert</dc:creator>
		<pubDate>Tue, 05 Jul 2005 15:29:43 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/?p=3511#comment-76960</guid>
		<description>am never forget the day my first book is published.
Every chapter I stole from somewhere else.
Index I copy from old Vladivostok telephone directory.
This book was sensational!
Pravda - well, Pravda - Pravda said: (Russian double-talk)
It stinks.
But Izvestia! Izvestia said: (Russian double-talk)
It stinks.
Metro-Goldwyn-Moskva buys movie rights for six million rubles,
Changing title to &#039;The Eternal Triangle&#039;,
With Brigitte Bardot playing part of hypotenuse.</description>
		<content:encoded><![CDATA[	<p>am never forget the day my first book is published.<br />
Every chapter I stole from somewhere else.<br />
Index I copy from old Vladivostok telephone directory.<br />
This book was sensational!<br />
Pravda &#8211; well, Pravda &#8211; Pravda said: (Russian double-talk)<br />
It stinks.<br />
But Izvestia! Izvestia said: (Russian double-talk)<br />
It stinks.<br />
Metro-Goldwyn-Moskva buys movie rights for six million rubles,<br />
Changing title to &#8216;The Eternal Triangle&#8217;,<br />
With Brigitte Bardot playing part of hypotenuse.</p>
 ]]></content:encoded>
	</item>
	<item>
		<title>By: Jacques Distler</title>
		<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/comment-page-1/#comment-76959</link>
		<dc:creator>Jacques Distler</dc:creator>
		<pubDate>Tue, 05 Jul 2005 15:04:05 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/?p=3511#comment-76959</guid>
		<description>Since you don&#039;t accept trackbacks, look &lt;a href=&quot;http://golem.ph.utexas.edu/~distler/blog/archives/000587.html&quot; rel=&quot;nofollow&quot;&gt;here&lt;/a&gt;.</description>
		<content:encoded><![CDATA[	<p>Since you don&#8217;t accept trackbacks, look <a href="http://golem.ph.utexas.edu/~distler/blog/archives/000587.html" rel="nofollow">here</a>.</p>
 ]]></content:encoded>
	</item>
	<item>
		<title>By: Creative Commonist</title>
		<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/comment-page-1/#comment-76925</link>
		<dc:creator>Creative Commonist</dc:creator>
		<pubDate>Tue, 05 Jul 2005 11:24:11 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/?p=3511#comment-76925</guid>
		<description>Bolyai János
The theory of space / János Bolyai ; With introduction, comments, and addenda edited by Ferenc Kárteszi ; Supplement by Barna Szénássy ; 
Budapest, Akadémiai Kiadó, 1987 
This is an English translation of the Latin original.
Bonola, Roberto
Non-Euclidean geometry, a critical and historical study of its developments. / Bonola, Roberto Carslaw, H. S, Halsted, G. B, Bolyai, John, Lobachevski, Nicholas
Translation with additional appendices by H. S. Carslaw. Supplement containing the G. B. Halsted translations of ``The science of absolute space&#039;&#039; by John Bolyai and ``The theory of parallels&#039;&#039; by Nicholas Lobachevski.
Dover Publications, Inc., New York, 1955 
You may contact the Mathematical Institute of the Hungarian Academy of Sciences: math@renyi.hu</description>
		<content:encoded><![CDATA[	<p>Bolyai J&#225;nos<br />
The theory of space / J&#225;nos Bolyai ; With introduction, comments, and addenda edited by Ferenc K&#225;rteszi ; Supplement by Barna Sz&#233;n&#225;ssy ;<br />
Budapest, Akad&#233;miai Kiad&#243;, 1987<br />
This is an English translation of the Latin original.<br />
Bonola, Roberto<br />
Non-Euclidean geometry, a critical and historical study of its developments. / Bonola, Roberto Carslaw, H. S, Halsted, G. B, Bolyai, John, Lobachevski, Nicholas<br />
Translation with additional appendices by H. S. Carslaw. Supplement containing the G. B. Halsted translations of &#8220;The science of absolute space&#8217;&#8217; by John Bolyai and &#8220;The theory of parallels&#8217;&#8217; by Nicholas Lobachevski.<br />
Dover Publications, Inc., New York, 1955<br />
You may contact the Mathematical Institute of the Hungarian Academy of Sciences: <a href="mailto:math@renyi.hu">math@renyi.hu</a></p>
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	</item>
	<item>
		<title>By: Kieran Healy</title>
		<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/comment-page-1/#comment-76895</link>
		<dc:creator>Kieran Healy</dc:creator>
		<pubDate>Tue, 05 Jul 2005 11:12:35 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/?p=3511#comment-76895</guid>
		<description>&lt;i&gt;Can someone point me in the right direction, please?&lt;/i&gt;

I have a friend in Minsk, who has a friend in Pinsk...</description>
		<content:encoded><![CDATA[	<p><i>Can someone point me in the right direction, please?</i></p>

	<p>I have a friend in Minsk, who has a friend in Pinsk&#8230;</p>
 ]]></content:encoded>
	</item>
	<item>
		<title>By: John Quiggin</title>
		<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/comment-page-1/#comment-76858</link>
		<dc:creator>John Quiggin</dc:creator>
		<pubDate>Tue, 05 Jul 2005 10:26:05 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/?p=3511#comment-76858</guid>
		<description>And Nikolai Ivanovich Lobachevsky is his name!</description>
		<content:encoded><![CDATA[	<p>And Nikolai Ivanovich Lobachevsky is his name!</p>
 ]]></content:encoded>
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	<item>
		<title>By: dsquared</title>
		<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/comment-page-1/#comment-76855</link>
		<dc:creator>dsquared</dc:creator>
		<pubDate>Tue, 05 Jul 2005 09:20:49 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/?p=3511#comment-76855</guid>
		<description>I can&#039;t believe that those pikers Gauss and Bolyai got their name on &quot;Gauss-Bolyai-Lobachevsky space&quot;.  One man deserves the credit ...</description>
		<content:encoded><![CDATA[	<p>I can&#8217;t believe that those pikers Gauss and Bolyai got their name on &#8220;Gauss-Bolyai-Lobachevsky space&#8221;.  One man deserves the credit &#8230;</p>
 ]]></content:encoded>
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		<title>By: James Wimberley</title>
		<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/comment-page-1/#comment-76852</link>
		<dc:creator>James Wimberley</dc:creator>
		<pubDate>Tue, 05 Jul 2005 07:20:42 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/?p=3511#comment-76852</guid>
		<description>There must be an academic ethnic joke about Hungarians in this, on the lines of &quot;a Hungarian is someone who goes into a revolving door behind you and comes out ahead of you.&quot;</description>
		<content:encoded><![CDATA[	<p>There must be an academic ethnic joke about Hungarians in this, on the lines of &#8220;a Hungarian is someone who goes into a revolving door behind you and comes out ahead of you.&#8221; </p>
 ]]></content:encoded>
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	<item>
		<title>By: ogged</title>
		<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/comment-page-1/#comment-76845</link>
		<dc:creator>ogged</dc:creator>
		<pubDate>Tue, 05 Jul 2005 00:46:51 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/?p=3511#comment-76845</guid>
		<description>We have to do all the work, don&#039;t we?  The link in the comments at John &amp; Belle&#039;s goes to &lt;a href=&quot;http://mathworld.wolfram.com/CircleSquaring.html&quot; rel=&quot;nofollow&quot;&gt;this page&lt;/a&gt;, where the claim is cited to &lt;a href=&quot;http://www.amazon.com/exec/obidos/ASIN/0198539355/weisstein-20/103-6316139-2261402&quot; rel=&quot;nofollow&quot;&gt;a book&lt;/a&gt; by Jeremy Gray.</description>
		<content:encoded><![CDATA[	<p>We have to do all the work, don&#8217;t we?  The link in the comments at John &#038; Belle&#8217;s goes to <a href="http://mathworld.wolfram.com/CircleSquaring.html" rel="nofollow">this page</a>, where the claim is cited to <a href="http://www.amazon.com/exec/obidos/ASIN/0198539355/weisstein-20/103-6316139-2261402" rel="nofollow">a book</a> by Jeremy Gray.</p>
 ]]></content:encoded>
	</item>
	<item>
		<title>By: John Quiggin</title>
		<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/comment-page-1/#comment-76844</link>
		<dc:creator>John Quiggin</dc:creator>
		<pubDate>Tue, 05 Jul 2005 00:34:38 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/?p=3511#comment-76844</guid>
		<description>Hmm, a library, now there&#039;s an idea. But I&#039;d still need the name of a book.</description>
		<content:encoded><![CDATA[	<p>Hmm, a library, now there&#8217;s an idea. But I&#8217;d still need the name of a book.</p>
 ]]></content:encoded>
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	<item>
		<title>By: Kevin Donoghue</title>
		<link>http://crookedtimber.org/2005/07/04/squaring-the-circle/comment-page-1/#comment-76841</link>
		<dc:creator>Kevin Donoghue</dc:creator>
		<pubDate>Mon, 04 Jul 2005 23:57:37 +0000</pubDate>
		<guid isPermaLink="false">http://crookedtimber.org/?p=3511#comment-76841</guid>
		<description>Looks like a library might be the best bet (the original was in Latin though):

“Bolyai gives also ... a geometrical construction, in hyperbolic space, for the quadrature of the circle....”

http://encyclopedia.jrank.org/CRE_DAH/CRP.html</description>
		<content:encoded><![CDATA[	<p>Looks like a library might be the best bet (the original was in Latin though):</p>

	<p>&#8220;Bolyai gives also &#8230; a geometrical construction, in hyperbolic space, for the quadrature of the circle&#8230;.&#8221;</p>

	<p><a href="http://encyclopedia.jrank.org/CRE_DAH/CRP.html" rel="nofollow">http://encyclopedia.jrank.org/CRE_DAH/CRP.html</a></p>
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