Puffer 2: Difference between revisions
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*[[Backrake 2]] | *[[Backrake 2]] | ||
*[[Sidewinder]] | *[[Sidewinder]] | ||
==References== | |||
<references /> | |||
==External links== | ==External links== | ||
{{LinkLexicon|lex_p.htm#puffertrain}} | {{LinkLexicon|lex_p.htm#puffertrain}} | ||
Revision as of 14:05, 19 November 2020
| Puffer 2 | |||||||
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| Pattern type | Puffer | ||||||
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| Number of cells | 22 | ||||||
| Bounding box | 18 × 5 | ||||||
| Direction | Orthogonal | ||||||
| Period | 140 | ||||||
| Speed | c/2 | ||||||
| Discovered by | Bill Gosper | ||||||
| Year of discovery | Unknown | ||||||
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Puffer 2 was the second puffer to be found and was discovered by Bill Gosper.[1] It is extremely dirty and its tail does not stabilize until generation 5533, after which it stays at period 140. It consists of a B-heptomino (shown here one generation before its standard form) escorted by two lightweight spaceships. Its debris can be stabilized by a third lightweight spaceship as in ecologist. A pulsar is formed at the south-western side in generation 4957.
See also
References
- ↑ Robert Wainwright (September 1971). Lifeline, vol 3, page 6.
External links
- Puffer 2 at the Life Lexicon