Period-55 glider gun
| Period-55 glider gun | |||||||||
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| Pattern type | Gun | ||||||||
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| Number of cells | 140 | ||||||||
| Bounding box | 32 × 29 | ||||||||
| Period | 55 | ||||||||
| Barrels | 1 | ||||||||
| Discovered by | David Raucci Dongook Lee | ||||||||
| Year of discovery | 2021 | ||||||||
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Period-55 glider gun is a true period 55 gun discovered by David Raucci on September 16, 2021[1], with optimizations by Dongook Lee and others on September 17th.[2] It is a complex three-sparker honeyfarm hassler that uses the eater1 / honeyfarm explosion reaction from the Snark to produce the same output glider. The sparkers then modify the reaction's ash to produce a new honeyfarm explosion in the same location. This is in contrast with the Snark's catalysts, which rebuild a block that must then be activated by another input glider.
The p55 gun is one of a relatively small number of known true period guns below period 62, beyond which stable Herschel loops enable the construction of arbitrary-period guns. It is currently the second-smallest odd-period gun after the period-21 glider gun by minimum population, and the outright smallest odd-period gun by bounding box.[3]
The small p55 gun is not the first of that period to be discovered, but the previous true-period form was much larger and used Herschel tracks.
References
- ↑ David Raucci (September 16, 2021). Message in #cgol on the Conwaylife Lounge Discord server
- ↑ Dongook Lee (September 17, 2021). Message in #cgol on the Conwaylife Lounge Discord server
- ↑ Adam P. Goucher. "synthesis-costs/gun". Catagolue. Retrieved on September 16, 2021.