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	<id>https://apm.bplaced.net/w/index.php?action=history&amp;feed=atom&amp;title=Scale_invariance</id>
	<title>Scale invariance - Revision history</title>
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	<updated>2026-04-20T17:14:05Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://apm.bplaced.net/w/index.php?title=Scale_invariance&amp;diff=19679&amp;oldid=prev</id>
		<title>Apm: Category:Surprising facts</title>
		<link rel="alternate" type="text/html" href="https://apm.bplaced.net/w/index.php?title=Scale_invariance&amp;diff=19679&amp;oldid=prev"/>
		<updated>2026-03-29T20:38:15Z</updated>

		<summary type="html">&lt;p&gt;&lt;a href=&quot;/w/index.php?title=Category:Surprising_facts&quot; title=&quot;Category:Surprising facts&quot;&gt;Category:Surprising facts&lt;/a&gt;&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 22:38, 29 March 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-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;* [[Convergent assembly]]&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;* [[Convergent assembly]]&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;* [[Log polar mapping]]&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;* [[Log polar mapping]]&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
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&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:Surprising facts]]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Apm</name></author>
	</entry>
	<entry>
		<id>https://apm.bplaced.net/w/index.php?title=Scale_invariance&amp;diff=16201&amp;oldid=prev</id>
		<title>Apm: basic page</title>
		<link rel="alternate" type="text/html" href="https://apm.bplaced.net/w/index.php?title=Scale_invariance&amp;diff=16201&amp;oldid=prev"/>
		<updated>2024-03-01T08:06:46Z</updated>

		<summary type="html">&lt;p&gt;basic page&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{stub}}&lt;br /&gt;
When some geometry is scaled up/down by a certain constant factor then it maps to a geometry that is indistinguishable form the original geometry. &amp;lt;br&amp;gt;&lt;br /&gt;
This is similar to translational symmetry in the sense that logarithmic mapping of the geometry leads to translational symmerty. &amp;lt;br&amp;gt;&lt;br /&gt;
See: [[Log polar mapping]]&lt;br /&gt;
&lt;br /&gt;
Fractal self similarity across scales can (but may not) be a weaker property. &amp;lt;br&amp;gt;&lt;br /&gt;
Like the Mandelbrot set is not scale invariant in the stringent sense stated above. &amp;lt;br&amp;gt;&lt;br /&gt;
Scale invariance needs to hold only for the local limit with more or less of the surroundings. &amp;lt;br&amp;gt;&lt;br /&gt;
There are truly scale invariant fractals with branching that goes beyond what&amp;#039;s possible in layers in 3D. &amp;lt;br&amp;gt;&lt;br /&gt;
{{wikitodo|Add an example and explain why layers are a more natural baseline model fro productive nanosystems.}}&lt;br /&gt;
&lt;br /&gt;
In [[advanced productive nanosystems]] like [[gem-gum factories]] there may be some limited form of cale invariance. &amp;lt;br&amp;gt;&lt;br /&gt;
Especially when organized in [[assembly layers]]. An especially for the upper end of the [[Convergent assembly]]. &amp;lt;br&amp;gt;&lt;br /&gt;
Bottom layers must feature heavy deviations from scale invariant geometry due to a number of factors. &amp;lt;br&amp;gt;&lt;br /&gt;
Some explained on page: [[Convergent assembly]].&lt;br /&gt;
&lt;br /&gt;
== Related ==&lt;br /&gt;
&lt;br /&gt;
* [[Higher throughput of smaller machinery]]&lt;br /&gt;
* [[Convergent assembly]]&lt;br /&gt;
* [[Log polar mapping]]&lt;/div&gt;</summary>
		<author><name>Apm</name></author>
	</entry>
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