Cloverleaf interchange: Difference between revisions
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|bx = 13 | |bx = 13 | ||
|by = 13 | |by = 13 | ||
|symmetry = *c | |||
|discoverer = Adam P. Goucher | |discoverer = Adam P. Goucher | ||
|discoveryear = 2016<!--should we be listing this as the discovery year if it was known beforehand?--> | |discoveryear = 2016<!--should we be listing this as the discovery year if it was known beforehand?--> | ||
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==References== | == References == | ||
<references> | <references> | ||
<ref name="haul10a1c7a48df686717596631e275383a5">{{citeCatagolue | <ref name="haul10a1c7a48df686717596631e275383a5">{{citeCatagolue | ||
|page | |page = haul/b3s23/C1/10a1c7a48df686717596631e275383a5 | ||
|title = Haul | |title = Haul | ||
|author = Adam P. Goucher | |author = Adam P. Goucher | ||
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|format = ref | |format = ref | ||
|title = Re: Soup search results | |title = Re: Soup search results | ||
|f = 2 |t = 1452 |p = 34243 | |f = 2 | ||
|t = 1452 | |||
|p = 34243 | |||
|author = BlinkerSpawn | |author = BlinkerSpawn | ||
|date = August 12, 2016 | |date = August 12, 2016 | ||
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</references> | </references> | ||
==External links== | == External links == | ||
* {{LinkWikipedia|Cloverleaf_interchange}} | * {{LinkWikipedia|Cloverleaf_interchange}} | ||
* {{LinkCatagolue|xs56_g8861u0u1688gz8ll55o0o55ll8zx3430343}} | * {{LinkCatagolue|xs56_g8861u0u1688gz8ll55o0o55ll8zx3430343}} | ||
{{natural}} | {{natural}} | ||
Revision as of 14:27, 9 August 2024
| Cloverleaf interchange | |||||||||
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| Pattern type | Strict still life | ||||||||
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| Number of cells | 56 | ||||||||
| Bounding box | 13 × 13 | ||||||||
| Static symmetry | *c (D8_1) | ||||||||
| 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.
While known for many years beforehand due to its ability to be hassled, it is notable due to a natural occurrence being 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 August 12, 2016.[4] GUYTU6J improved this to 10 gliders on February 5, 2020.[5]
A cloverleaf interchange can be hassled by carnival shuttles:
| (click above to open LifeViewer) RLE: here Plaintext: here |
References
- ↑ Adam P. Goucher. "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 (discussion thread) at the ConwayLife.com forums
- ↑ GUYTU6J (February 5, 2020). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums
External links
- Cloverleaf interchange at Wikipedia
- Cloverleaf interchange at Adam P. Goucher's Catagolue