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	<id>https://theportalwiki.com/w/index.php?action=history&amp;feed=atom&amp;title=Tubes</id>
	<title>Tubes - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://theportalwiki.com/w/index.php?action=history&amp;feed=atom&amp;title=Tubes"/>
	<link rel="alternate" type="text/html" href="https://theportalwiki.com/w/index.php?title=Tubes&amp;action=history"/>
	<updated>2026-04-15T13:11:49Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.44.0</generator>
	<entry>
		<id>https://theportalwiki.com/w/index.php?title=Tubes&amp;diff=43510&amp;oldid=prev</id>
		<title>Illiterate Bilingual at 10:07, 14 December 2011</title>
		<link rel="alternate" type="text/html" href="https://theportalwiki.com/w/index.php?title=Tubes&amp;diff=43510&amp;oldid=prev"/>
		<updated>2011-12-14T10:07:08Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&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 10:07, 14 December 2011&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-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&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;[[File:P2 tube network.jpg|thumb|right|&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;250px&lt;/del&gt;|[[Aperture Science]]&#039;s complex tube network as seen in &#039;&#039;[[Portal 2]]&#039;&#039;.]]&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;[[File:P2 tube network.jpg|thumb|right|&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;300px&lt;/ins&gt;|[[Aperture Science]]&#039;s complex tube network as seen in &#039;&#039;[[Portal 2]]&#039;&#039;.]]&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;&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;#039;&amp;#039;&amp;#039;Tubes&amp;#039;&amp;#039;&amp;#039; are a vital part of the [[Aperture Science]] Enrichment Center. The tube network is a nexus used for product delivery throughout the facility. Often, the tubes will be used to deliver various products by the company that need to be put through testing against the [[Handheld Portal Device]], such as the [[cubes]] and the [[turrets]].&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;#039;&amp;#039;&amp;#039;Tubes&amp;#039;&amp;#039;&amp;#039; are a vital part of the [[Aperture Science]] Enrichment Center. The tube network is a nexus used for product delivery throughout the facility. Often, the tubes will be used to deliver various products by the company that need to be put through testing against the [[Handheld Portal Device]], such as the [[cubes]] and the [[turrets]].&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Illiterate Bilingual</name></author>
	</entry>
	<entry>
		<id>https://theportalwiki.com/w/index.php?title=Tubes&amp;diff=43507&amp;oldid=prev</id>
		<title>Illiterate Bilingual at 09:45, 14 December 2011</title>
		<link rel="alternate" type="text/html" href="https://theportalwiki.com/w/index.php?title=Tubes&amp;diff=43507&amp;oldid=prev"/>
		<updated>2011-12-14T09:45:07Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&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 09:45, 14 December 2011&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-l34&quot;&gt;Line 34:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 34:&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;&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;{{MechanicsNav}}&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;{{MechanicsNav}}&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;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;[[Category:Mechanics]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Illiterate Bilingual</name></author>
	</entry>
	<entry>
		<id>https://theportalwiki.com/w/index.php?title=Tubes&amp;diff=43504&amp;oldid=prev</id>
		<title>Illiterate Bilingual at 09:38, 14 December 2011</title>
		<link rel="alternate" type="text/html" href="https://theportalwiki.com/w/index.php?title=Tubes&amp;diff=43504&amp;oldid=prev"/>
		<updated>2011-12-14T09:38:17Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&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 09:38, 14 December 2011&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-l19&quot;&gt;Line 19:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 19:&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;== Trivia ==&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;== Trivia ==&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;div&gt;* &amp;#039;&amp;#039;[[Portal 2]]&amp;#039;&amp;#039;&amp;lt;nowiki&amp;gt;&amp;#039;s&amp;lt;/nowiki&amp;gt; developer commentary reveals that the tubes were designed in a typical [[Aperture Science]] thought; a ridiculously complex, inefficient, and expensive solution to a simple transportation problem.&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;#039;&amp;#039;[[Portal 2]]&amp;#039;&amp;#039;&amp;lt;nowiki&amp;gt;&amp;#039;s&amp;lt;/nowiki&amp;gt; developer commentary reveals that the tubes were designed in a typical [[Aperture Science]] thought; a ridiculously complex, inefficient, and expensive solution to a simple transportation problem.&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;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; 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;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;== List of appearances ==&lt;/ins&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;[[Portal]]&#039;&#039;&lt;/ins&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;[[Portal: Still Alive]]&#039;&#039;&lt;/ins&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;[[Portal: The First Slice]]&#039;&#039;&lt;/ins&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;[[Portal 2]]&#039;&#039;&lt;/ins&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &#039;&#039;[[Portal 2 - The Final Hours|The Final Hours of Portal 2]]&#039;&#039;&lt;/ins&gt;&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;&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;== See also ==&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;== See also ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Illiterate Bilingual</name></author>
	</entry>
	<entry>
		<id>https://theportalwiki.com/w/index.php?title=Tubes&amp;diff=43503&amp;oldid=prev</id>
		<title>Illiterate Bilingual: /* Overview */</title>
		<link rel="alternate" type="text/html" href="https://theportalwiki.com/w/index.php?title=Tubes&amp;diff=43503&amp;oldid=prev"/>
		<updated>2011-12-14T09:34:45Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;Overview&lt;/span&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
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				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&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 09:34, 14 December 2011&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-l6&quot;&gt;Line 6:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 6:&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;&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;== Overview ==&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;== Overview ==&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;&lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;Throughout &lt;/del&gt;&#039;&#039;[[Portal]]&#039;&#039;, [[Chell]] &lt;del style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;will encounter &lt;/del&gt;a number of [[Vital Apparatus Vent]]s, which are used to safely drop a testing element into the testing chamber. Whenever a vital testing item is lost, the Vital Apparatus Vent will replenish another replacement. When Chell escaped her testing track, it is discovered that there are a series of tubes leading all over the Enrichment Center, transporting the [[cubes]]. When Chell rides a burst tube, she is carried around by a pneumatic pressure inside the tubes and is brought back into [[Portal Test Chamber 09|Test Chamber 09]] by [[GLaDOS]].&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;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;During &lt;/ins&gt;&#039;&#039;[[Portal]]&#039;&#039;, [[Chell]] &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;encounters &lt;/ins&gt;a number of [[Vital Apparatus Vent]]s, which are used to safely drop a testing element into the testing chamber. Whenever a vital testing item is lost, the Vital Apparatus Vent will replenish another replacement. When Chell escaped her testing track, it is discovered that there are a series of tubes leading all over the Enrichment Center, transporting the [[cubes]]. When Chell rides a burst tube, she is carried around by a pneumatic pressure inside the tubes and is brought back into [[Portal Test Chamber 09|Test Chamber 09]] by [[GLaDOS]].&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;&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;#039;&amp;#039;[[Portal 2]]&amp;#039;&amp;#039; however introduces a new type of tube component, the [[Pneumatic Diversity Vent]]s. The component supplies the vacuum needed around the tube networks, serving as checkpoints that will continuously provide endless pneumatic pressure into the tubes. In the single-player campaign&amp;#039;s &amp;#039;&amp;#039;The Escape&amp;#039;&amp;#039; chapter, Chell discovers that the Pneumatic Diversity Vents also provide passive monitoring for Aperture products passing through the components; which was revealed that objects will be &amp;quot;identified but never judged&amp;quot;. This also reveals that the Diversity Vents can be used to &amp;quot;divide&amp;quot; or &amp;quot;filter&amp;quot; objects away from other types of objects, {{spoiler|such as the tubes that only seem to be carrying [[bombs]] in the single-player finale chapter, &amp;#039;&amp;#039;The Part Where He Kills You&amp;#039;&amp;#039;.}}&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;#039;&amp;#039;[[Portal 2]]&amp;#039;&amp;#039; however introduces a new type of tube component, the [[Pneumatic Diversity Vent]]s. The component supplies the vacuum needed around the tube networks, serving as checkpoints that will continuously provide endless pneumatic pressure into the tubes. In the single-player campaign&amp;#039;s &amp;#039;&amp;#039;The Escape&amp;#039;&amp;#039; chapter, Chell discovers that the Pneumatic Diversity Vents also provide passive monitoring for Aperture products passing through the components; which was revealed that objects will be &amp;quot;identified but never judged&amp;quot;. This also reveals that the Diversity Vents can be used to &amp;quot;divide&amp;quot; or &amp;quot;filter&amp;quot; objects away from other types of objects, {{spoiler|such as the tubes that only seem to be carrying [[bombs]] in the single-player finale chapter, &amp;#039;&amp;#039;The Part Where He Kills You&amp;#039;&amp;#039;.}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Illiterate Bilingual</name></author>
	</entry>
	<entry>
		<id>https://theportalwiki.com/w/index.php?title=Tubes&amp;diff=43502&amp;oldid=prev</id>
		<title>Illiterate Bilingual: Created page with &quot;[[Aperture Science&#039;s complex tube network as seen in &#039;&#039;Portal 2&#039;&#039;.]]  &#039;&#039;&#039;Tubes&#039;&#039;&#039; are a vital part of the [[Aperture Science...&quot;</title>
		<link rel="alternate" type="text/html" href="https://theportalwiki.com/w/index.php?title=Tubes&amp;diff=43502&amp;oldid=prev"/>
		<updated>2011-12-14T09:33:55Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;&lt;a href=&quot;/wiki/File:P2_tube_network.jpg&quot; title=&quot;File:P2 tube network.jpg&quot;&gt;thumb|right|250px|[[Aperture Science&lt;/a&gt;&amp;#039;s complex tube network as seen in &amp;#039;&amp;#039;&lt;a href=&quot;/wiki/Portal_2&quot; title=&quot;Portal 2&quot;&gt;Portal 2&lt;/a&gt;&amp;#039;&amp;#039;.]]  &amp;#039;&amp;#039;&amp;#039;Tubes&amp;#039;&amp;#039;&amp;#039; are a vital part of the [[Aperture Science...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;[[File:P2 tube network.jpg|thumb|right|250px|[[Aperture Science]]&amp;#039;s complex tube network as seen in &amp;#039;&amp;#039;[[Portal 2]]&amp;#039;&amp;#039;.]]&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;&amp;#039;Tubes&amp;#039;&amp;#039;&amp;#039; are a vital part of the [[Aperture Science]] Enrichment Center. The tube network is a nexus used for product delivery throughout the facility. Often, the tubes will be used to deliver various products by the company that need to be put through testing against the [[Handheld Portal Device]], such as the [[cubes]] and the [[turrets]].&lt;br /&gt;
&lt;br /&gt;
In &amp;#039;&amp;#039;[[Portal 2]]&amp;#039;&amp;#039;&amp;lt;nowiki&amp;gt;&amp;#039;&amp;lt;/nowiki&amp;gt;s cooperative campaign, the tubes are widely used for transporting the components of [[Atlas]] and [[P-body]] during, after, and before their assemblies throughout the facility.&lt;br /&gt;
&lt;br /&gt;
== Overview ==&lt;br /&gt;
Throughout &amp;#039;&amp;#039;[[Portal]]&amp;#039;&amp;#039;, [[Chell]] will encounter a number of [[Vital Apparatus Vent]]s, which are used to safely drop a testing element into the testing chamber. Whenever a vital testing item is lost, the Vital Apparatus Vent will replenish another replacement. When Chell escaped her testing track, it is discovered that there are a series of tubes leading all over the Enrichment Center, transporting the [[cubes]]. When Chell rides a burst tube, she is carried around by a pneumatic pressure inside the tubes and is brought back into [[Portal Test Chamber 09|Test Chamber 09]] by [[GLaDOS]].&lt;br /&gt;
&lt;br /&gt;
&amp;#039;&amp;#039;[[Portal 2]]&amp;#039;&amp;#039; however introduces a new type of tube component, the [[Pneumatic Diversity Vent]]s. The component supplies the vacuum needed around the tube networks, serving as checkpoints that will continuously provide endless pneumatic pressure into the tubes. In the single-player campaign&amp;#039;s &amp;#039;&amp;#039;The Escape&amp;#039;&amp;#039; chapter, Chell discovers that the Pneumatic Diversity Vents also provide passive monitoring for Aperture products passing through the components; which was revealed that objects will be &amp;quot;identified but never judged&amp;quot;. This also reveals that the Diversity Vents can be used to &amp;quot;divide&amp;quot; or &amp;quot;filter&amp;quot; objects away from other types of objects, {{spoiler|such as the tubes that only seem to be carrying [[bombs]] in the single-player finale chapter, &amp;#039;&amp;#039;The Part Where He Kills You&amp;#039;&amp;#039;.}}&lt;br /&gt;
&lt;br /&gt;
In the cooperative campaign of &amp;#039;&amp;#039;Portal 2&amp;#039;&amp;#039;, [[Atlas]] and [[P-body]] are constantly built inside a tube by a [[Reassembly Machine]] checkpoint, which a malfunctioning version was witnessed in the &amp;#039;&amp;#039;Art Therapy&amp;#039;&amp;#039; testing course. Once they are fully built and activated again, the floors of the Reassembly Machine will open and deploy the robot duo into their testing chamber through their Vital Apparatus Vents. Throughout the co-op campaign, the tube network for Atlas and P-body are filtered away from other testing elements, preventing the bots from being rebuilt in front of an incoming object falling into the test chamber. The Pneumatic Diversity Vent was also put to use again in the [[Hub]], as a way of transporting the bots into a mini-hub for additional testing courses.&lt;br /&gt;
&lt;br /&gt;
== Functionality ==&lt;br /&gt;
A vital part of the testing process, the tube networks deliver the [[Cubes#Weighted Storage Cube|weighted storage cubes]], [[Turrets#Sentry Turret|turrets]], [[Atlas]] and [[P-body]]&amp;#039;s components, and [[Cubes#Edgeless Safety Cube|edgeless safety cubes]] through a series of [[Pneumatic Diversity Vent]]s for carrying the aforementioned items throughout and into their respective [[Vital Apparatus Vent]]s - strategically placed in a test chamber.&lt;br /&gt;
&lt;br /&gt;
Each test chamber is equipped with at least one tube, often serving as the &amp;quot;elevator shaft&amp;quot; in the &amp;#039;&amp;#039;[[Portal 2]]&amp;#039;&amp;#039; [[chamberlock]]s for both the single-player campaign and delivering the components of [[Atlas]] and [[P-body]] in the co-op campaign. Test chambers with the possibility of losing a testing element such as the [[Cubes|cube]], will often have a readily available [[Vital Apparatus Vent]] tube component on a ceiling; used to replenish said testing element.&lt;br /&gt;
&lt;br /&gt;
== Trivia ==&lt;br /&gt;
* &amp;#039;&amp;#039;[[Portal 2]]&amp;#039;&amp;#039;&amp;lt;nowiki&amp;gt;&amp;#039;s&amp;lt;/nowiki&amp;gt; developer commentary reveals that the tubes were designed in a typical [[Aperture Science]] thought; a ridiculously complex, inefficient, and expensive solution to a simple transportation problem.&lt;br /&gt;
&lt;br /&gt;
== See also ==&lt;br /&gt;
* [[Vital Apparatus Vent]]s&lt;br /&gt;
* [[Pneumatic Diversity Vent]]s&lt;br /&gt;
* [[Mechanics]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
{{MechanicsNav}}&lt;/div&gt;</summary>
		<author><name>Illiterate Bilingual</name></author>
	</entry>
</feed>