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	<id>https://keystagewiki.com/index.php?action=history&amp;feed=atom&amp;title=Hans_Geiger</id>
	<title>Hans Geiger - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://keystagewiki.com/index.php?action=history&amp;feed=atom&amp;title=Hans_Geiger"/>
	<link rel="alternate" type="text/html" href="https://keystagewiki.com/index.php?title=Hans_Geiger&amp;action=history"/>
	<updated>2026-05-21T20:35:00Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://keystagewiki.com/index.php?title=Hans_Geiger&amp;diff=21140&amp;oldid=prev</id>
		<title>Ellen References at 14:16, 11 December 2019</title>
		<link rel="alternate" type="text/html" href="https://keystagewiki.com/index.php?title=Hans_Geiger&amp;diff=21140&amp;oldid=prev"/>
		<updated>2019-12-11T14:16:10Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 14:16, 11 December 2019&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;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 13:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; 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;:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1471851370&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=01c69b0ae058f809cf636033e6ba793e ''Geiger, Hans, page 91, GCSE Physics, Hodder, AQA '']&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; 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;:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1471851370&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=01c69b0ae058f809cf636033e6ba793e ''Geiger, Hans, page 91, GCSE Physics, Hodder, AQA '']&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; 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;:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=0008158762&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Geiger, Hans, pages 20-1, GCSE Chemistry; Student Book, Collins, AQA '']&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; 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;:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=0008158762&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Geiger, Hans, pages 20-1, GCSE Chemistry; Student Book, Collins, AQA '']&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; 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; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; 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;====OCR====&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; 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;:[https://www.amazon.co.uk/gp/product/0198359829/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=0198359829&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=90e8d7b4f039d53035238fa0320fe00b ''Geiger, Hans, page 31, Gateway GCSE Chemistry, Oxford, OCR  '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Ellen References</name></author>
		
	</entry>
	<entry>
		<id>https://keystagewiki.com/index.php?title=Hans_Geiger&amp;diff=19067&amp;oldid=prev</id>
		<title>Ellen References at 11:11, 5 November 2019</title>
		<link rel="alternate" type="text/html" href="https://keystagewiki.com/index.php?title=Hans_Geiger&amp;diff=19067&amp;oldid=prev"/>
		<updated>2019-11-05T11:11:46Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class=&quot;diff diff-contentalign-left&quot; data-mw=&quot;interface&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #222; text-align: center;&quot;&gt;Revision as of 11:11, 5 November 2019&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-l5&quot; &gt;Line 5:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 5:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; 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;===About Hans Geiger===&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; 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;===About Hans Geiger===&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; 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;: '''Hans Geiger''' worked with a colleague Walther Müller to create the [[Geiger Counter]].&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt; &lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #222; 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;: '''Hans Geiger''' worked with a colleague Walther Müller to create the [[Geiger Counter]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; 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; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; 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;===References===&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; 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;====AQA====&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; 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; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; 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;:[https://www.amazon.co.uk/gp/product/0008158770/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=0008158770&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=ec31595e720e1529e49876c3866fff6e ''Geiger, Hans, page 132, GCSE Physics; Student Book, Collins, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; 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;:[https://www.amazon.co.uk/gp/product/1471851346/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1471851346&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=3ac654f4b0da781c49c855a1af4c92ea ''Geiger, Hans, page 8, GCSE Chemistry, Hodder, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; 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;:[https://www.amazon.co.uk/gp/product/1471851370/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=1471851370&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=01c69b0ae058f809cf636033e6ba793e ''Geiger, Hans, page 91, GCSE Physics, Hodder, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot;&gt; &lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;color: #222; 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;:[https://www.amazon.co.uk/gp/product/0008158762/ref=as_li_tl?ie=UTF8&amp;amp;camp=1634&amp;amp;creative=6738&amp;amp;creativeASIN=0008158762&amp;amp;linkCode=as2&amp;amp;tag=nrjc-21&amp;amp;linkId=a0fffa35b3ea49a63404f6704e0df7cc ''Geiger, Hans, pages 20-1, GCSE Chemistry; Student Book, Collins, AQA '']&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Ellen References</name></author>
		
	</entry>
	<entry>
		<id>https://keystagewiki.com/index.php?title=Hans_Geiger&amp;diff=13980&amp;oldid=prev</id>
		<title>NRJC: Created page with &quot;==Key Stage 4== ===Meaning=== '''Hans Geiger''' was a physicist who worked for Ernest Rutherford to disprove the Plum Pudding Model of the atom in 1909 using t...&quot;</title>
		<link rel="alternate" type="text/html" href="https://keystagewiki.com/index.php?title=Hans_Geiger&amp;diff=13980&amp;oldid=prev"/>
		<updated>2019-04-07T17:34:01Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;==Key Stage 4== ===Meaning=== &amp;#039;&amp;#039;&amp;#039;Hans Geiger&amp;#039;&amp;#039;&amp;#039; was a &lt;a href=&quot;/index.php/Physicist&quot; title=&quot;Physicist&quot;&gt;physicist&lt;/a&gt; who worked for &lt;a href=&quot;/index.php/Ernest_Rutherford&quot; title=&quot;Ernest Rutherford&quot;&gt;Ernest Rutherford&lt;/a&gt; to disprove the &lt;a href=&quot;/index.php/Plum_Pudding_Model&quot; title=&quot;Plum Pudding Model&quot;&gt;Plum Pudding Model&lt;/a&gt; of the &lt;a href=&quot;/index.php/Atom&quot; title=&quot;Atom&quot;&gt;atom&lt;/a&gt; in 1909 using t...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==Key Stage 4==&lt;br /&gt;
===Meaning===&lt;br /&gt;
'''Hans Geiger''' was a [[physicist]] who worked for [[Ernest Rutherford]] to disprove the [[Plum Pudding Model]] of the [[atom]] in 1909 using the [[Rutherford's Alpha Scattering Experiment]].&lt;br /&gt;
&lt;br /&gt;
===About Hans Geiger===&lt;br /&gt;
: '''Hans Geiger''' worked with a colleague Walther Müller to create the [[Geiger Counter]].&lt;/div&gt;</summary>
		<author><name>NRJC</name></author>
		
	</entry>
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