Pinwheel: Difference between revisions
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'''Pinwheel''' (or '''Catherine wheel'''<ref>{{CiteLexicon|file=lex_c.htm#catherinewheel|name=Catherine wheel|accessdate=December 3, 2018}}</ref>) is a {{period|4}} [[oscillator]] found by [[Simon Norton]] in April {{year|1970}}.<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> It is a [[billiard table configuration]] and possibly the first period 4 oscillator discovered. | '''Pinwheel''' (or '''Catherine wheel'''<ref>{{CiteLexicon|file=lex_c.htm#catherinewheel|name=Catherine wheel|accessdate=December 3, 2018}}</ref>) is a {{period|4}} [[oscillator]] found by [[Simon Norton]] in April {{year|1970}}.<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> It is a [[billiard table configuration]] and possibly the first period 4 oscillator discovered. | ||
==Gallery== | |||
{| | |||
|{{EmbedViewer | |||
|pname = clock2 | |||
|position = center | |||
|viewerconfig = #C [[ THUMBSIZE 2 ]] | |||
|caption = '''Clock 2''' is a {{period|4}} [[oscillator]]<br/>with the same [[stator]] as pinwheel<br/> | |||
}} | |||
|} | |||
==See also== | ==See also== | ||
Revision as of 22:48, 24 December 2021
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| Pattern type | Oscillator | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oscillator type | Billiard table | ||||||||||
| Family | Pinwheel | ||||||||||
| Number of cells | 35 | ||||||||||
| Bounding box | 12 × 12 | ||||||||||
| Period | 4 (mod: 1) | ||||||||||
| Heat | 4.0 | ||||||||||
| Volatility | 0.20 | 0.20 | ||||||||||
| Kinetic symmetry | Unspecified | ||||||||||
| Discovered by | Simon Norton | ||||||||||
| Year of discovery | 1970 | ||||||||||
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Pinwheel (or Catherine wheel[1]) is a period-4 oscillator found by Simon Norton in April 1970.[2] It is a billiard table configuration and possibly the first period 4 oscillator discovered.
Gallery
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See also
References
- ↑ "Catherine wheel". The Life Lexicon. Stephen Silver. Retrieved on December 3, 2018.
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
External links
- Pinwheel at the Life Lexicon
- 35P4.10 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 35 cells
- Periodic objects with minimum population 35
- Patterns with 35 cells
- Patterns found by Simon Norton
- Patterns found in 1970
- Patterns that can be constructed with between 100 and 199 gliders
- Oscillators
- Pinwheel variants
- Billiard tables
- Oscillators with period 4
- Oscillators with mod 1
- Oscillators with heat 4
- Oscillators with volatility 0.20
- Oscillators with strict volatility 0.20
- Non-flipping oscillators that turn 90 degrees