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	<title>Phase shift and frequency shift in Sagnac experiment - Revision history</title>
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	<updated>2026-07-22T17:13:00Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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		<id>https://wiki.naturalphilosophy.org/index.php?title=Phase_shift_and_frequency_shift_in_Sagnac_experiment&amp;diff=311826&amp;oldid=prev</id>
		<title>ClaudeBot: fix apostrophes lost to the character-encoding bug (Einstein?s -&gt; Einstein&#039;s); URLs left untouched</title>
		<link rel="alternate" type="text/html" href="https://wiki.naturalphilosophy.org/index.php?title=Phase_shift_and_frequency_shift_in_Sagnac_experiment&amp;diff=311826&amp;oldid=prev"/>
		<updated>2026-07-22T13:06:53Z</updated>

		<summary type="html">&lt;p&gt;fix apostrophes lost to the character-encoding bug (Einstein?s -&amp;gt; Einstein&amp;#039;s); URLs left untouched&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;← 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 09:06, 22 July 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-l13&quot;&gt;Line 13:&lt;/td&gt;
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&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;&amp;lt;!--[if gte mso 9]&amp;gt;&amp;lt;xml&amp;gt;   &amp;lt;w:WordDocument&amp;gt;    &amp;lt;w:View&amp;gt;Normal&amp;lt;/w:View&amp;gt;    &amp;lt;w:Zoom&amp;gt;0&amp;lt;/w:Zoom&amp;gt;    &amp;lt;w:HyphenationZone&amp;gt;21&amp;lt;/w:HyphenationZone&amp;gt;    &amp;lt;w:Compatibility&amp;gt;     &amp;lt;w:BreakWrappedTables/&amp;gt;     &amp;lt;w:SnapToGridInCell/&amp;gt;     &amp;lt;w:ApplyBreakingRules/&amp;gt;     &amp;lt;w:WrapTextWithPunct/&amp;gt;     &amp;lt;w:UseAsianBreakRules/&amp;gt;     &amp;lt;w:UseFELayout/&amp;gt;    &amp;lt;/w:Compatibility&amp;gt;    &amp;lt;w:BrowserLevel&amp;gt;MicrosoftInternetExplorer4&amp;lt;/w:BrowserLevel&amp;gt;   &amp;lt;/w:WordDocument&amp;gt;  &amp;lt;/xml&amp;gt;&amp;lt;![endif][if gte mso 10]&amp;gt;  &amp;lt;style&amp;gt;   /* Style Definitions */   table.MsoNormalTable  	{mso-style-name:&quot;Tableau Normal&quot;;  	mso-tstyle-rowband-size:0;  	mso-tstyle-colband-size:0;  	mso-style-noshow:yes;  	mso-style-parent:&quot;&quot;;  	mso-padding-alt:0cm 5.4pt 0cm 5.4pt;  	mso-para-margin:0cm;  	mso-para-margin-bottom:.0001pt;  	mso-pagination:widow-orphan;  	font-size:10.0pt;  	font-family:&quot;Times New Roman&quot;;  	mso-fareast-font-family:&quot;Times New Roman&quot;;}  &amp;lt;/style&amp;gt;  &amp;lt;![endif]--&amp;gt;   &amp;lt;b&amp;gt;&#039;&#039;&amp;lt;span lang=&quot;EN-GB&quot; style=&quot;font-size: 12pt; font-family: &quot;&amp;gt;Summary: &amp;lt;span&amp;gt;&amp;amp;nbsp;&amp;amp;nbsp;&amp;lt;/span&amp;gt;Both a phase shift and  a frequency shift have been obtained with the Sagnac experiment. The phase  shift was discovered by Sagnac in 1913. It implies accelerations so that it can  be explained only by the General Relativity theory. Attempts to explain this  result by a Euclidian approximation failed as it leads to the Selleri&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;?&lt;/del&gt;s  paradox. &amp;lt;/span&amp;gt;&#039;&#039;&amp;lt;/b&amp;gt;&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;&amp;lt;!--[if gte mso 9]&amp;gt;&amp;lt;xml&amp;gt;   &amp;lt;w:WordDocument&amp;gt;    &amp;lt;w:View&amp;gt;Normal&amp;lt;/w:View&amp;gt;    &amp;lt;w:Zoom&amp;gt;0&amp;lt;/w:Zoom&amp;gt;    &amp;lt;w:HyphenationZone&amp;gt;21&amp;lt;/w:HyphenationZone&amp;gt;    &amp;lt;w:Compatibility&amp;gt;     &amp;lt;w:BreakWrappedTables/&amp;gt;     &amp;lt;w:SnapToGridInCell/&amp;gt;     &amp;lt;w:ApplyBreakingRules/&amp;gt;     &amp;lt;w:WrapTextWithPunct/&amp;gt;     &amp;lt;w:UseAsianBreakRules/&amp;gt;     &amp;lt;w:UseFELayout/&amp;gt;    &amp;lt;/w:Compatibility&amp;gt;    &amp;lt;w:BrowserLevel&amp;gt;MicrosoftInternetExplorer4&amp;lt;/w:BrowserLevel&amp;gt;   &amp;lt;/w:WordDocument&amp;gt;  &amp;lt;/xml&amp;gt;&amp;lt;![endif][if gte mso 10]&amp;gt;  &amp;lt;style&amp;gt;   /* Style Definitions */   table.MsoNormalTable  	{mso-style-name:&quot;Tableau Normal&quot;;  	mso-tstyle-rowband-size:0;  	mso-tstyle-colband-size:0;  	mso-style-noshow:yes;  	mso-style-parent:&quot;&quot;;  	mso-padding-alt:0cm 5.4pt 0cm 5.4pt;  	mso-para-margin:0cm;  	mso-para-margin-bottom:.0001pt;  	mso-pagination:widow-orphan;  	font-size:10.0pt;  	font-family:&quot;Times New Roman&quot;;  	mso-fareast-font-family:&quot;Times New Roman&quot;;}  &amp;lt;/style&amp;gt;  &amp;lt;![endif]--&amp;gt;   &amp;lt;b&amp;gt;&#039;&#039;&amp;lt;span lang=&quot;EN-GB&quot; style=&quot;font-size: 12pt; font-family: &quot;&amp;gt;Summary: &amp;lt;span&amp;gt;&amp;amp;nbsp;&amp;amp;nbsp;&amp;lt;/span&amp;gt;Both a phase shift and  a frequency shift have been obtained with the Sagnac experiment. The phase  shift was discovered by Sagnac in 1913. It implies accelerations so that it can  be explained only by the General Relativity theory. Attempts to explain this  result by a Euclidian approximation failed as it leads to the Selleri&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&#039;&lt;/ins&gt;s  paradox. &amp;lt;/span&amp;gt;&#039;&#039;&amp;lt;/b&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&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;&amp;lt;b&amp;gt;&amp;#039;&amp;#039;&amp;lt;span lang=&amp;quot;EN-GB&amp;quot; style=&amp;quot;font-size: 12pt; font-family: &amp;quot;&amp;gt;Sagnac favours an explanation by an ether motionless with regard to the  laboratory.&amp;lt;/span&amp;gt;&amp;#039;&amp;#039;&amp;lt;/b&amp;gt;&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;&amp;lt;b&amp;gt;&amp;#039;&amp;#039;&amp;lt;span lang=&amp;quot;EN-GB&amp;quot; style=&amp;quot;font-size: 12pt; font-family: &amp;quot;&amp;gt;Sagnac favours an explanation by an ether motionless with regard to the  laboratory.&amp;lt;/span&amp;gt;&amp;#039;&amp;#039;&amp;lt;/b&amp;gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>ClaudeBot</name></author>
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	<entry>
		<id>https://wiki.naturalphilosophy.org/index.php?title=Phase_shift_and_frequency_shift_in_Sagnac_experiment&amp;diff=307780&amp;oldid=prev</id>
		<title>ClaudeBot: Fill in keywords from the wiki&#039;s abstract records</title>
		<link rel="alternate" type="text/html" href="https://wiki.naturalphilosophy.org/index.php?title=Phase_shift_and_frequency_shift_in_Sagnac_experiment&amp;diff=307780&amp;oldid=prev"/>
		<updated>2026-07-21T11:34:32Z</updated>

		<summary type="html">&lt;p&gt;Fill in keywords from the wiki&amp;#039;s abstract records&lt;/p&gt;
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		<id>https://wiki.naturalphilosophy.org/index.php?title=Phase_shift_and_frequency_shift_in_Sagnac_experiment&amp;diff=295938&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=Phase_shift_and_frequency_shift_in_Sagnac_experiment&amp;diff=295938&amp;oldid=prev"/>
		<updated>2026-07-18T23:41:48Z</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 19:41, 18 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;}}&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;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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&lt;/table&gt;</summary>
		<author><name>ClaudeBot</name></author>
	</entry>
	<entry>
		<id>https://wiki.naturalphilosophy.org/index.php?title=Phase_shift_and_frequency_shift_in_Sagnac_experiment&amp;diff=24719&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=Phase_shift_and_frequency_shift_in_Sagnac_experiment&amp;diff=24719&amp;oldid=prev"/>
		<updated>2017-01-02T02:49:25Z</updated>

		<summary type="html">&lt;p&gt;Imported from text file&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 22:49, 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-l23&quot;&gt;Line 23:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 23:&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;[[Category:Scientific Paper|phase shift frequency shift sagnac experiment]]&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|phase shift frequency shift sagnac experiment]]&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;[[Category:Aether]]&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;[[Category:Aether&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|phase shift frequency shift sagnac experiment&lt;/ins&gt;]]&lt;/div&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;[[Category:Relativity]]&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;[[Category:Relativity&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|phase shift frequency shift sagnac experiment&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Maintenance script</name></author>
	</entry>
	<entry>
		<id>https://wiki.naturalphilosophy.org/index.php?title=Phase_shift_and_frequency_shift_in_Sagnac_experiment&amp;diff=19894&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=Phase_shift_and_frequency_shift_in_Sagnac_experiment&amp;diff=19894&amp;oldid=prev"/>
		<updated>2017-01-01T17:53:09Z</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 = Phase shift and frequency shift&lt;br /&gt;
in Sagnac experiment&lt;br /&gt;
&lt;br /&gt;
| url = [http://www.naturalphilosophy.org/pdf/abstracts/abstracts_6499.pdf Link to paper]&lt;br /&gt;
| author = [[]]&lt;br /&gt;
| journal = [[None]]&lt;br /&gt;
| num_pages = 2&lt;br /&gt;
}}&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Read the full paper&amp;#039;&amp;#039;&amp;#039; [http://www.naturalphilosophy.org/pdf/abstracts/abstracts_6499.pdf here]&lt;br /&gt;
&lt;br /&gt;
==Abstract==&lt;br /&gt;
&lt;br /&gt;
&amp;lt;!--[if gte mso 9]&amp;gt;&amp;lt;xml&amp;gt;   &amp;lt;w:WordDocument&amp;gt;    &amp;lt;w:View&amp;gt;Normal&amp;lt;/w:View&amp;gt;    &amp;lt;w:Zoom&amp;gt;0&amp;lt;/w:Zoom&amp;gt;    &amp;lt;w:HyphenationZone&amp;gt;21&amp;lt;/w:HyphenationZone&amp;gt;    &amp;lt;w:Compatibility&amp;gt;     &amp;lt;w:BreakWrappedTables/&amp;gt;     &amp;lt;w:SnapToGridInCell/&amp;gt;     &amp;lt;w:ApplyBreakingRules/&amp;gt;     &amp;lt;w:WrapTextWithPunct/&amp;gt;     &amp;lt;w:UseAsianBreakRules/&amp;gt;     &amp;lt;w:UseFELayout/&amp;gt;    &amp;lt;/w:Compatibility&amp;gt;    &amp;lt;w:BrowserLevel&amp;gt;MicrosoftInternetExplorer4&amp;lt;/w:BrowserLevel&amp;gt;   &amp;lt;/w:WordDocument&amp;gt;  &amp;lt;/xml&amp;gt;&amp;lt;![endif][if gte mso 10]&amp;gt;  &amp;lt;style&amp;gt;   /* Style Definitions */   table.MsoNormalTable  	{mso-style-name:&amp;quot;Tableau Normal&amp;quot;;  	mso-tstyle-rowband-size:0;  	mso-tstyle-colband-size:0;  	mso-style-noshow:yes;  	mso-style-parent:&amp;quot;&amp;quot;;  	mso-padding-alt:0cm 5.4pt 0cm 5.4pt;  	mso-para-margin:0cm;  	mso-para-margin-bottom:.0001pt;  	mso-pagination:widow-orphan;  	font-size:10.0pt;  	font-family:&amp;quot;Times New Roman&amp;quot;;  	mso-fareast-font-family:&amp;quot;Times New Roman&amp;quot;;}  &amp;lt;/style&amp;gt;  &amp;lt;![endif]--&amp;gt;   &amp;lt;b&amp;gt;&amp;#039;&amp;#039;&amp;lt;span lang=&amp;quot;EN-GB&amp;quot; style=&amp;quot;font-size: 12pt; font-family: &amp;quot;&amp;gt;Summary: &amp;lt;span&amp;gt;&amp;amp;nbsp;&amp;amp;nbsp;&amp;lt;/span&amp;gt;Both a phase shift and  a frequency shift have been obtained with the Sagnac experiment. The phase  shift was discovered by Sagnac in 1913. It implies accelerations so that it can  be explained only by the General Relativity theory. Attempts to explain this  result by a Euclidian approximation failed as it leads to the Selleri?s  paradox. &amp;lt;/span&amp;gt;&amp;#039;&amp;#039;&amp;lt;/b&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;&amp;#039;&amp;#039;&amp;lt;span lang=&amp;quot;EN-GB&amp;quot; style=&amp;quot;font-size: 12pt; font-family: &amp;quot;&amp;gt;Sagnac favours an explanation by an ether motionless with regard to the  laboratory.&amp;lt;/span&amp;gt;&amp;#039;&amp;#039;&amp;lt;/b&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;&amp;#039;&amp;#039;&amp;lt;span lang=&amp;quot;EN-GB&amp;quot; style=&amp;quot;font-size: 12pt; font-family: &amp;quot;&amp;gt;Pr Stedman noticed that a frequency shift is also occurring enabling to  detect the Sagnac device rotation.&amp;lt;/span&amp;gt;&amp;#039;&amp;#039;&amp;lt;/b&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&amp;lt;b&amp;gt;&amp;#039;&amp;#039;&amp;lt;span lang=&amp;quot;EN-GB&amp;quot; style=&amp;quot;font-size: 12pt; font-family: &amp;quot;&amp;gt;&amp;amp;nbsp;This report is intended for explaining the frequency shift.&amp;lt;/span&amp;gt;&amp;#039;&amp;#039;&amp;lt;/b&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[Category:Scientific Paper|phase shift frequency shift sagnac experiment]]&lt;br /&gt;
&lt;br /&gt;
[[Category:Aether]]&lt;br /&gt;
[[Category:Relativity]]&lt;/div&gt;</summary>
		<author><name>Maintenance script</name></author>
	</entry>
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