Simkin glider gun
Simkin glider gun is a glider gun found by Michael Simkin on April 28, 2015.[1] It consists of a Herschel running in a loop made of two B60 conduits, producing infinite copies of the first natural glider. In terms of its 36 cells (if one of the two streams is suppressed by an eater 1) it is the smallest known gun, sharing the record with the Gosper glider gun. In the 29-cell double-barrelled form (shown in the infobox), as well as the pseudo-period boat-bit form, it is the absolute record holder. Its smallest known predecessor has only 21 cells.[2]
| Simkin glider gun | |||||||||
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| Pattern type | Gun | ||||||||
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| Number of cells | 29 | ||||||||
| Bounding box | 33×14 | ||||||||
| Period | 120 | ||||||||
| Barrels | 2 | ||||||||
| Discovered by | Michael Simkin | ||||||||
| Year of discovery | 2015 | ||||||||
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The day of its discovery, Chris Cain used it to create the Sawtooth 181.[3]
The Simkin glider gun ranked second place in the Pattern of the Year 2015 competition on the ConwayLife.com forums, behind the syringe.[4]
See also
- Simkin's p60 - an oscillator derived from Simkin glider gun.
- B-52 bomber - another double-barrelled glider gun involving a B-heptomino.
- Period-256 glider gun - four-barrelled glider gun, also involving a Herschel.
References
- Michael Simkin (April 28, 2015). Re: The Hunting of the New Herschel Conduits (discussion thread) at the ConwayLife.com forums
- Aidan F. Pierce (July 30, 2019). Re: Can confirm Fewest cell glide gun? (discussion thread) at the ConwayLife.com forums
- Chris Cain (April 28, 2015). Re: Smaller sawtooth (discussion thread) at the ConwayLife.com forums
- Alexey Nigin (February 11, 2016). Re: Pattern of the Year 2015 (Votes) (discussion thread) at the ConwayLife.com forums