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		<id>http://wiki.karljones.com/index.php?action=history&amp;feed=atom&amp;title=Hydrogen_fuel</id>
		<title>Hydrogen fuel - Revision history</title>
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		<updated>2026-10-23T16:33:28Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://wiki.karljones.com/index.php?title=Hydrogen_fuel&amp;diff=10495&amp;oldid=prev</id>
		<title>Karl Jones at 12:49, 3 April 2016</title>
		<link rel="alternate" type="text/html" href="http://wiki.karljones.com/index.php?title=Hydrogen_fuel&amp;diff=10495&amp;oldid=prev"/>
				<updated>2016-04-03T12:49:53Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
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				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan='2' style=&quot;background-color: white; color:black; text-align: center;&quot;&gt;Revision as of 12:49, 3 April 2016&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 25:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 25:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [https://en.wikipedia.org/wiki/Hydrogen_fuel Hydrogen fuel] @ Wikipedia&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background-color: #f9f9f9; color: #333333; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #e6e6e6; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* [https://en.wikipedia.org/wiki/Hydrogen_fuel Hydrogen fuel] @ Wikipedia&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; 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;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; 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;[[Category:Energy]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt;&amp;#160;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color:black; 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;[[Category:Hydrogen]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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		<author><name>Karl Jones</name></author>	</entry>

	<entry>
		<id>http://wiki.karljones.com/index.php?title=Hydrogen_fuel&amp;diff=7747&amp;oldid=prev</id>
		<title>Karl Jones: Created page with &quot;'''Hydrogen fuel''' is a zero-emission fuel when hydrogen is burned with oxygen (if one considers water not as an emission) or used in a contained cell also ca...&quot;</title>
		<link rel="alternate" type="text/html" href="http://wiki.karljones.com/index.php?title=Hydrogen_fuel&amp;diff=7747&amp;oldid=prev"/>
				<updated>2016-02-07T16:44:18Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;&amp;#039;&amp;#039;&amp;#039;Hydrogen fuel&amp;#039;&amp;#039;&amp;#039; is a zero-emission &lt;a href=&quot;/index.php?title=Fuel&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Fuel (page does not exist)&quot;&gt;fuel&lt;/a&gt; when &lt;a href=&quot;/index.php?title=Hydrogen&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Hydrogen (page does not exist)&quot;&gt;hydrogen&lt;/a&gt; is burned with &lt;a href=&quot;/index.php?title=Oxygen&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Oxygen (page does not exist)&quot;&gt;oxygen&lt;/a&gt; (if one considers &lt;a href=&quot;/index.php?title=Water&amp;amp;action=edit&amp;amp;redlink=1&quot; class=&quot;new&quot; title=&quot;Water (page does not exist)&quot;&gt;water&lt;/a&gt; not as an emission) or used in a contained cell also ca...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;'''Hydrogen fuel''' is a zero-emission [[fuel]] when [[hydrogen]] is burned with [[oxygen]] (if one considers [[water]] not as an emission) or used in a contained cell also capable of 'reversing' the reaction if needed.&lt;br /&gt;
&lt;br /&gt;
== Description ==&lt;br /&gt;
&lt;br /&gt;
Hydrogen is often used as fuel in electrochemical cells, or combustion in internal engines, to power vehicles and electric devices.&lt;br /&gt;
&lt;br /&gt;
It is also used in the propulsion of spacecraft and might potentially be mass-produced and commercialized for passenger vehicles and aircraft.&lt;br /&gt;
&lt;br /&gt;
== Energy carrier, not energy resource ==&lt;br /&gt;
&lt;br /&gt;
Since there is very little free hydrogen gas, hydrogen is in practice only an energy carrier, like electricity, not an energy resource.&lt;br /&gt;
&lt;br /&gt;
Hydrogen gas must be produced, and that production always requires more energy than can be retrieved from the gas as a fuel later on.&lt;br /&gt;
&lt;br /&gt;
== See also ==&lt;br /&gt;
&lt;br /&gt;
* [[Energy]]&lt;br /&gt;
* [[Fuel]]&lt;br /&gt;
* [[Hydrogen]]&lt;br /&gt;
* [[Oxygen]]&lt;br /&gt;
* [[Physics]]&lt;br /&gt;
* [[Water]]&lt;br /&gt;
&lt;br /&gt;
== External links ==&lt;br /&gt;
&lt;br /&gt;
* [https://en.wikipedia.org/wiki/Hydrogen_fuel Hydrogen fuel] @ Wikipedia&lt;/div&gt;</summary>
		<author><name>Karl Jones</name></author>	</entry>

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