Cloverleaf interchange: Difference between revisions
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added new 9G synthesis. I don't know why the "2020" on the 10G synthesis had a hyperlink so I removed it |
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|isorulemin = B/S2cik | |isorulemin = B/S2cik | ||
|isorulemax = B2ikn34-inw5-ry6-i78/S012345678 | |isorulemax = B2ikn34-inw5-ry6-i78/S012345678 | ||
|synthesis = | |synthesis = 9 | ||
|plaintext = true | |plaintext = true | ||
|rle = true | |rle = true | ||
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While known for many years beforehand due to its ability to be [[hassle]]d, 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, {{year|2016}}.<ref name="haul10a1c7a48df686717596631e275383a5" /><ref name="post34242" /> This made it the single largest known still life to occur completely [[natural]]ly, 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 {{year|2021}}.<ref name="post135613" /> | While known for many years beforehand due to its ability to be [[hassle]]d, 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, {{year|2016}}.<ref name="haul10a1c7a48df686717596631e275383a5" /><ref name="post34242" /> This made it the single largest known still life to occur completely [[natural]]ly, 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 {{year|2021}}.<ref name="post135613" /> | ||
[[BlinkerSpawn]] found a {{gliders|12}} [[Glider synthesis|synthesis]] on August 12, 2016.<ref name="post34243" /> [[GUYTU6J]] improved this to {{gliders|10|text=10 gliders}} on February 5, {{ | [[BlinkerSpawn]] found a {{gliders|12}} [[Glider synthesis|synthesis]] on August 12, 2016.<ref name="post34243" /> [[GUYTU6J]] improved this to {{gliders|10|text=10 gliders}} on February 5, 2020.<ref name="post88936" /> [[KtT]] further reduced its cost to {{gliders|9|text=9 gliders}} on September 23, 2024.<ref name="post194679" /> | ||
A cloverleaf interchange can be hassled by [[carnival shuttle]]s: | A cloverleaf interchange can be hassled by [[carnival shuttle]]s: | ||
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|author = GUYTU6J | |author = GUYTU6J | ||
|date = February 5, 2020 | |date = February 5, 2020 | ||
}}</ref> | |||
<ref name="post194679">{{LinkForumThread | |||
|format = ref | |||
|title = Re: Still Life Synthesis Thread | |||
|f = 2 | |||
|t = 3267 | |||
|p = 194679 | |||
|author = KtT | |||
|date = September 23, 2024 | |||
}}</ref> | }}</ref> | ||
</references> | </references> | ||
Revision as of 17:18, 26 September 2024
| Cloverleaf interchange | |||||||||
| View static image | |||||||||
| 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] KtT further reduced its cost to 9 gliders on September 23, 2024.[6]
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
- ↑ KtT (September 23, 2024). Re: Still Life Synthesis Thread (discussion thread) at the ConwayLife.com forums
External links
- Cloverleaf interchange at Wikipedia
- Cloverleaf interchange at Adam P. Goucher's Catagolue