Pinwheel

	Pinwheel
	<span class="mw-default-size" typeof="mw:File"><a href="/wiki/File:Pinwheel.png" class="mw-file-description" title="Pinwheel image"><img alt="Pinwheel image" src="/w/images/9/9c/Pinwheel.png" decoding="async" width="113" height="113" class="mw-file-element"></a></span>
	<span class="mw-default-size" typeof="mw:File"><a href="/wiki/File:Pinwheel.png" class="mw-file-description" title="Pinwheel image"><img alt="Pinwheel image" src="/w/images/9/9c/Pinwheel.png" decoding="async" width="113" height="113" class="mw-file-element"></a></span>
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Pattern type	Oscillator
Number of cells	35
Bounding box	12 × 12
Period	4 (mod: Unknown)
Heat	4.0
Volatility	Unknown \| Unknown
Kinetic symmetry	Unspecified
Discovered by	Simon Norton
Year of discovery	1970
Pattern files
Plaintext	pinwheel.cells
RLE	pinwheel.rle

Pinwheel (or Catherine wheel) is a period 4 oscillator found by Simon Norton in April 1970. It is a billiard table configuration and is possibly the first period 4 oscillator that was discovered.

External links