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	<id>http://mathpuzzlewiki.com/index.php?action=history&amp;feed=atom&amp;title=Talk%3AWagon_collision</id>
	<title>Talk:Wagon collision - Revision history</title>
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	<updated>2026-04-04T09:18:32Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://mathpuzzlewiki.com/index.php?title=Talk:Wagon_collision&amp;diff=639&amp;oldid=prev</id>
		<title>Vampire Library at 22:27, 23 November 2010</title>
		<link rel="alternate" type="text/html" href="http://mathpuzzlewiki.com/index.php?title=Talk:Wagon_collision&amp;diff=639&amp;oldid=prev"/>
		<updated>2010-11-23T22:27:31Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 16:27, 23 November 2010&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;I don&amp;#039;t really understand the problem as it is worded.  I&amp;#039;m having trouble understanding what you mean by &amp;quot;wagon.&amp;quot;  [[User:Oscarlevin|Oscarlevin]] 14:16, 18 November 2010 (EST)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;I don&amp;#039;t really understand the problem as it is worded.  I&amp;#039;m having trouble understanding what you mean by &amp;quot;wagon.&amp;quot;  [[User:Oscarlevin|Oscarlevin]] 14:16, 18 November 2010 (EST)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The wagons can really just be thought of as circles of radius R that are traveling along their centers. This is the terminology used in Arnold&#039;s book and I was just sticking to it since I couldn&#039;t think of what else to call them. Maybe we can think of something more appropriate or add pictures (the solution badly needs a picture in any case). You should be able to find the original wording of the problem in Amazon&#039;s preview of the book along with some nice pictures (I think you can preview it, Amazon appears to be down for me at the moment oddly enough). &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;- &lt;/del&gt;Vampire Library&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The wagons can really just be thought of as circles of radius R that are traveling along their centers. This is the terminology used in Arnold&#039;s book and I was just sticking to it since I couldn&#039;t think of what else to call them. Maybe we can think of something more appropriate or add pictures (the solution badly needs a picture in any case). You should be able to find the original wording of the problem in Amazon&#039;s preview of the book along with some nice pictures (I think you can preview it, Amazon appears to be down for me at the moment oddly enough). &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[User:&lt;/ins&gt;Vampire Library&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|Vampire Library]] 17:27, 23 November 2010 (EST)&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Vampire Library</name></author>
	</entry>
	<entry>
		<id>http://mathpuzzlewiki.com/index.php?title=Talk:Wagon_collision&amp;diff=636&amp;oldid=prev</id>
		<title>Vampire Library at 04:47, 19 November 2010</title>
		<link rel="alternate" type="text/html" href="http://mathpuzzlewiki.com/index.php?title=Talk:Wagon_collision&amp;diff=636&amp;oldid=prev"/>
		<updated>2010-11-19T04:47:05Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 22:47, 18 November 2010&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;I don&amp;#039;t really understand the problem as it is worded.  I&amp;#039;m having trouble understanding what you mean by &amp;quot;wagon.&amp;quot;  [[User:Oscarlevin|Oscarlevin]] 14:16, 18 November 2010 (EST)&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;I don&amp;#039;t really understand the problem as it is worded.  I&amp;#039;m having trouble understanding what you mean by &amp;quot;wagon.&amp;quot;  [[User:Oscarlevin|Oscarlevin]] 14:16, 18 November 2010 (EST)&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;The wagons can really just be thought of as circles of radius R that are traveling along their centers. This is the terminology used in Arnold&#039;s book and I was just sticking to it since I couldn&#039;t think of what else to call them. Maybe we can think of something more appropriate or add pictures (the solution badly needs a picture in any case). You should be able to find the original wording of the problem in Amazon&#039;s preview of the book along with some nice pictures (I think you can preview it, Amazon appears to be down for me at the moment oddly enough). - Vampire Library&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Vampire Library</name></author>
	</entry>
	<entry>
		<id>http://mathpuzzlewiki.com/index.php?title=Talk:Wagon_collision&amp;diff=633&amp;oldid=prev</id>
		<title>Oscarlevin: Created page with &quot;I don&#039;t really understand the problem as it is worded.  I&#039;m having trouble understanding what you mean by &quot;wagon.&quot;  ~~~~&quot;</title>
		<link rel="alternate" type="text/html" href="http://mathpuzzlewiki.com/index.php?title=Talk:Wagon_collision&amp;diff=633&amp;oldid=prev"/>
		<updated>2010-11-18T19:16:13Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;I don&amp;#039;t really understand the problem as it is worded.  I&amp;#039;m having trouble understanding what you mean by &amp;quot;wagon.&amp;quot;  ~~~~&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;I don&amp;#039;t really understand the problem as it is worded.  I&amp;#039;m having trouble understanding what you mean by &amp;quot;wagon.&amp;quot;  [[User:Oscarlevin|Oscarlevin]] 14:16, 18 November 2010 (EST)&lt;/div&gt;</summary>
		<author><name>Oscarlevin</name></author>
	</entry>
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