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	<id>http://naturalphilosophy.org/wiki/index.php?action=history&amp;feed=atom&amp;title=A_Possible_Tired-Light_Mechanism</id>
	<title>A Possible Tired-Light Mechanism - Revision history</title>
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	<updated>2026-04-12T08:52:26Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://naturalphilosophy.org/wiki/index.php?title=A_Possible_Tired-Light_Mechanism&amp;diff=16797&amp;oldid=prev</id>
		<title>Maintenance script: Imported from text file</title>
		<link rel="alternate" type="text/html" href="http://naturalphilosophy.org/wiki/index.php?title=A_Possible_Tired-Light_Mechanism&amp;diff=16797&amp;oldid=prev"/>
		<updated>2017-01-01T17:01:35Z</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 13:01, 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-l20&quot;&gt;Line 20:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 20:&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;Tired-light mechanisms appeared in the literature as early as the late twenties, when Zwicky (1929), disturbed by the large values of the apparent recession velocities of galaxies, conceived a mechanism whereby photons could lose energy through an interaction with the medium located between the source and the observer. Rather than enter into a detailed historical review of these attempts, we will simply remind the reader that we have suggested other such mechanisms, beginning in 1971. The first idea we put forward (following an original idea by Finlay-Freundlich, 1953-1954, with the approval of Max Born, 1954 a and b) was a photon-photon interaction. This mechanism (Pecker, 1974) was difficult to accept, and we looked instead for possible interactions between the photon and some massive pseudoscalar boson.&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;Tired-light mechanisms appeared in the literature as early as the late twenties, when Zwicky (1929), disturbed by the large values of the apparent recession velocities of galaxies, conceived a mechanism whereby photons could lose energy through an interaction with the medium located between the source and the observer. Rather than enter into a detailed historical review of these attempts, we will simply remind the reader that we have suggested other such mechanisms, beginning in 1971. The first idea we put forward (following an original idea by Finlay-Freundlich, 1953-1954, with the approval of Max Born, 1954 a and b) was a photon-photon interaction. This mechanism (Pecker, 1974) was difficult to accept, and we looked instead for possible interactions between the photon and some massive pseudoscalar boson.&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: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;[[Category:Scientific Paper&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;|possible tired-light mechanism&lt;/ins&gt;]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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		<author><name>Maintenance script</name></author>
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	<entry>
		<id>http://naturalphilosophy.org/wiki/index.php?title=A_Possible_Tired-Light_Mechanism&amp;diff=6693&amp;oldid=prev</id>
		<title>Maintenance script: Imported from text file</title>
		<link rel="alternate" type="text/html" href="http://naturalphilosophy.org/wiki/index.php?title=A_Possible_Tired-Light_Mechanism&amp;diff=6693&amp;oldid=prev"/>
		<updated>2016-12-30T16:24:10Z</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 = A Possible Tired-Light Mechanism&lt;br /&gt;
| url = [http://www.naturalphilosophy.org/pdf/abstracts/abstracts_534.pdf Link to paper]&lt;br /&gt;
| author = [[Jean-Claude Pecker]]&lt;br /&gt;
| keywords = [[Tired-light]]&lt;br /&gt;
| published = 1988&lt;br /&gt;
| journal = [[Apeiron]]&lt;br /&gt;
| volume = [[1]]&lt;br /&gt;
| number = [[2]]&lt;br /&gt;
| num_pages = 5&lt;br /&gt;
| pages = 13-15&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_534.pdf here]&lt;br /&gt;
&lt;br /&gt;
==Abstract==&lt;br /&gt;
&lt;br /&gt;
Recent developments in physics and astrophysics lead us to introduce a new tired-light mechanism involving an interaction between a massive photon and Dirac&amp;#039;s vacuum particles.&lt;br /&gt;
&lt;br /&gt;
Tired-light mechanisms appeared in the literature as early as the late twenties, when Zwicky (1929), disturbed by the large values of the apparent recession velocities of galaxies, conceived a mechanism whereby photons could lose energy through an interaction with the medium located between the source and the observer. Rather than enter into a detailed historical review of these attempts, we will simply remind the reader that we have suggested other such mechanisms, beginning in 1971. The first idea we put forward (following an original idea by Finlay-Freundlich, 1953-1954, with the approval of Max Born, 1954 a and b) was a photon-photon interaction. This mechanism (Pecker, 1974) was difficult to accept, and we looked instead for possible interactions between the photon and some massive pseudoscalar boson.&lt;br /&gt;
&lt;br /&gt;
[[Category:Scientific Paper]]&lt;/div&gt;</summary>
		<author><name>Maintenance script</name></author>
	</entry>
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