Cloverleaf interchange: Difference between revisions
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Revision as of 19:39, 3 November 2021
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 56 | ||||||||
| Bounding box | 13 × 13 | ||||||||
| Static symmetry | Unspecified | ||||||||
| Discovered by | Adam P. Goucher | ||||||||
| Year of discovery | 2016 | ||||||||
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- For other uses of "cloverleaf", see Cloverleaf (disambiguation).
Cloverleaf interchange (or fourfold racetrack-weld-racetrack) is a 56-cell still life exhibiting D8_1 symmetry.
A natural occurrence was found in the ash of a random asymmetric soup by Adam P. Goucher on August 12, 2016.[1][2] This made it the single largest known still life to occur completely naturally, surpassing the previous record holder, the 46-cell professor; it had previously arisen semi-naturally in various higher symmetries, including C2_1, C4_1, D2_+1, D4_+1, D4_+2 and D4_x1. It has since been tied in C1 by another, unnamed 56-cell still life found by John Goodman in September 2021.[3]
'BlinkerSpawn' found a 12-glider synthesis on the same day.[4] GUYTU6J improved this to 10 gliders on February 5, 2020.[5]
A cloverleaf interchange can be hassled by Carnival shuttles, like this:
| (click above to open LifeViewer) RLE: here Plaintext: here |
References
- ↑ Adam P. Goucher (August 12, 2016). "Haul". Catagolue. Retrieved on August 12, 2016.
- ↑ Apple Bottom (August 12, 2016). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ dani (September 8, 2021). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ BlinkerSpawn (August 12, 2016). "Re: Soup search results". ConwayLife.com forums. Retrieved on August 12, 2016.
- ↑ GUYTU6J (February 5, 2020). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums
External links
- Cloverleaf interchange at Wikipedia