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	<title>Visualizing the Postulates of the Velocity of Light - Revision history</title>
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	<updated>2026-07-22T18:04:52Z</updated>
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		<id>https://wiki.naturalphilosophy.org/index.php?title=Visualizing_the_Postulates_of_the_Velocity_of_Light&amp;diff=301781&amp;oldid=prev</id>
		<title>ClaudeBot: Add to Category:Light</title>
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		<updated>2026-07-20T13:40:36Z</updated>

		<summary type="html">&lt;p&gt;Add to Category:Light&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 09:40, 20 July 2026&lt;/td&gt;
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&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;[[Category:Scientific Paper|visualizing postulates velocity light]]&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;[[Category:Scientific Paper|visualizing postulates velocity light]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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	<entry>
		<id>https://wiki.naturalphilosophy.org/index.php?title=Visualizing_the_Postulates_of_the_Velocity_of_Light&amp;diff=293532&amp;oldid=prev</id>
		<title>ClaudeBot: Remove empty None journal/publisher placeholder (dead red-link cleanup)</title>
		<link rel="alternate" type="text/html" href="https://wiki.naturalphilosophy.org/index.php?title=Visualizing_the_Postulates_of_the_Velocity_of_Light&amp;diff=293532&amp;oldid=prev"/>
		<updated>2026-07-18T23:24:54Z</updated>

		<summary type="html">&lt;p&gt;Remove empty &lt;a href=&quot;/index.php?title=None&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;None (page does not exist)&quot;&gt;None&lt;/a&gt; journal/publisher placeholder (dead red-link cleanup)&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 19:24, 18 July 2026&lt;/td&gt;
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	<entry>
		<id>https://wiki.naturalphilosophy.org/index.php?title=Visualizing_the_Postulates_of_the_Velocity_of_Light&amp;diff=22299&amp;oldid=prev</id>
		<title>Maintenance script: Imported from text file</title>
		<link rel="alternate" type="text/html" href="https://wiki.naturalphilosophy.org/index.php?title=Visualizing_the_Postulates_of_the_Velocity_of_Light&amp;diff=22299&amp;oldid=prev"/>
		<updated>2017-01-01T18:37:30Z</updated>

		<summary type="html">&lt;p&gt;Imported from text file&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 14:37, 1 January 2017&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-l9&quot;&gt;Line 9:&lt;/td&gt;
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&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;==Abstract==&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;==Abstract==&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;An elementary geometric construction enables one to clearly visualize and fully comprehend the differences between three postulates on the velocity of light -- those of Einstein (1905, 1907), Ritz (1908), and Moon and Spencer (1956, 1989). The universal time postulate of Moon and Spencer is the only one of these three in full agreement with a11 experiments hitherto analyzed. It displays an essential simplicity, and involves a simple method of synchronizing the clocks of two moving observers that is not possible in general for the Ritz and Einstein postulates.[[Category:Scientific Paper]]&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;An elementary geometric construction enables one to clearly visualize and fully comprehend the differences between three postulates on the velocity of light -- those of Einstein (1905, 1907), Ritz (1908), and Moon and Spencer (1956, 1989). The universal time postulate of Moon and Spencer is the only one of these three in full agreement with a11 experiments hitherto analyzed. It displays an essential simplicity, and involves a simple method of synchronizing the clocks of two moving observers that is not possible in general for the Ritz and Einstein postulates.&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;/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;[[Category:Scientific Paper&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|visualizing postulates velocity light&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<id>https://wiki.naturalphilosophy.org/index.php?title=Visualizing_the_Postulates_of_the_Velocity_of_Light&amp;diff=1340&amp;oldid=prev</id>
		<title>Maintenance script: Imported from text file</title>
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		<updated>2016-12-30T02:21:53Z</updated>

		<summary type="html">&lt;p&gt;Imported from text file&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Infobox paper&lt;br /&gt;
| title = Visualizing the Postulates of the Velocity of Light&lt;br /&gt;
| author = [[Domina Eberle Spencer]], [[Uma Y Shama]]&lt;br /&gt;
| keywords = [[Einstein&amp;#039;s Postulates]], [[Speed of Light]]&lt;br /&gt;
| published = 1998&lt;br /&gt;
| journal = [[None]]&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
==Abstract==&lt;br /&gt;
&lt;br /&gt;
An elementary geometric construction enables one to clearly visualize and fully comprehend the differences between three postulates on the velocity of light -- those of Einstein (1905, 1907), Ritz (1908), and Moon and Spencer (1956, 1989). The universal time postulate of Moon and Spencer is the only one of these three in full agreement with a11 experiments hitherto analyzed. It displays an essential simplicity, and involves a simple method of synchronizing the clocks of two moving observers that is not possible in general for the Ritz and Einstein postulates.[[Category:Scientific Paper]]&lt;/div&gt;</summary>
		<author><name>Maintenance script</name></author>
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