<?xml version="1.0"?>
<rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/">
	<channel>
		<title>Physics Book  - Recent changes [en]</title>
		<link>http://www.physicsbook.gatech.edu/Special:RecentChanges</link>
		<description>Track the most recent changes to the wiki in this feed.</description>
		<language>en</language>
		<generator>MediaWiki 1.42.7</generator>
		<lastBuildDate>Wed, 24 Jun 2026 18:53:28 GMT</lastBuildDate>
		<item>
			<title>Magnetic Dipole</title>
			<link>http://www.physicsbook.gatech.edu/index.php?title=Magnetic_Dipole&amp;diff=48320&amp;oldid=47608</link>
			<guid isPermaLink="false">http://www.physicsbook.gatech.edu/index.php?title=Magnetic_Dipole&amp;diff=48320&amp;oldid=47608</guid>
			<description>&lt;p&gt;The physicist that observed a possible magnetic monopole in 1982 is Blas Cabrera Navarro, not to be confused with his grandfather, Blas Cabrera Felipe, who was also a physicist but died in 1945, long before the claimed observation. Also very slightly tweaked the language so that the text does not state in absolute terms that this observation was definitely due to a magnetic monopole.&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&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 12:41, 19 June 2026&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-l243&quot;&gt;Line 243:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 243:&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;Although electrostatics and magnetics have a lot in common, one difference is that magnetic poles cannot exist singly like charges can.  Poles always come in N/S pairs.  If you were to cut a bar magnet in half, you will get two new magnets with North and South poles.&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;Although electrostatics and magnetics have a lot in common, one difference is that magnetic poles cannot exist singly like charges can.  Poles always come in N/S pairs.  If you were to cut a bar magnet in half, you will get two new magnets with North and South poles.&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;A magnetic monopole was observed once, by [https://en.wikipedia.org/wiki/&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Blas_Cabrera &lt;/del&gt;| Blas Cabrera], on February 14, 1982 (also known as the Valentine&#039;s Day Monopole).  However, this experiment has been recreated several times, and no one, not even Cabrera himself, has been able to find another monopole.&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;A &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;possible &lt;/ins&gt;magnetic monopole was observed once, by [https://en.wikipedia.org/wiki/&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Blas_Cabrera_Navarro&lt;/ins&gt;| Blas Cabrera &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Navarro&lt;/ins&gt;], on February 14, 1982 (also known as the Valentine&#039;s Day Monopole).  However, this experiment has been recreated several times, and no one, not even Cabrera himself, has been able to find another monopole.&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;&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;===Magnetic North vs Geographic North===&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;===Magnetic North vs Geographic North===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</description>
			<pubDate>Fri, 19 Jun 2026 16:41:08 GMT</pubDate>
			<dc:creator>Sborg3</dc:creator>
			<comments>http://www.physicsbook.gatech.edu/Talk:Magnetic_Dipole</comments>
		</item>
		<item>
			<title>User:Sborg3</title>
			<link>http://www.physicsbook.gatech.edu/User:Sborg3</link>
			<guid isPermaLink="false">http://www.physicsbook.gatech.edu/User:Sborg3</guid>
			<description>&lt;p&gt;User account &lt;a href=&quot;/index.php?title=User:Sborg3&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new mw-userlink&quot; title=&quot;User:Sborg3 (page does not exist)&quot;&gt;&lt;bdi&gt;Sborg3&lt;/bdi&gt;&lt;/a&gt; was created&lt;/p&gt;
</description>
			<pubDate>Fri, 19 Jun 2026 16:27:24 GMT</pubDate>
			<dc:creator>Sborg3</dc:creator>
			<comments>http://www.physicsbook.gatech.edu/User_talk:Sborg3</comments>
		</item>
</channel></rss>