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Today's featured article The pianola breeders are a series of patterns by Paul Tooke in 2010, based on a simplification and extension of the Gemini spaceship's construction mechanism. Tooke produced a number of slow-salvo-constructed patterns with superlinear growth, including a series of breeder patterns of previously unknown types. For some patterns, the Gemini's two construction arms were moved to a permanent stationary platform, using fourteen glider-loop channels instead of twelve. Some of these breeder patterns remain difficult to classify unambiguously. Read more... In the news November 3: Lucy D'Agostino posts a new set of connectable Spartan converters with E-heptomino inputs, further expanding the set of known E-heptomino conduits. November 2: iNoMed finds a way to use stable catalysts to make a p2 traffic jam wire turn a 90-degree corner with no help from sparkers. October 28-30: Entity Valkyrie builds the first known true period-47 glider gun based on a partial result by iNoMed, after which the bounding box is reduced by more than a factor of four by several contributors over the next two days, from 311 × 289 down to Luka Okanishi's greatly simplified design at 147 × 144. October 20: FWKnightship completes a redesigned (34,7)c/156 spaceship with a bounding box of (52514, 158980) and minimum population of 655,594; this is less than 1/38th of the population and less than 1/6000th of the area of the previous version of this spaceship constructed by Luka Okanishi last year. October 10: AlbertArmstain rebuilds an initial stage from Mitchell Riley's H-to-Gs into a Herschel-to-B-heptomino converter; Lucy D'Agostino notices that this is actually a known E-heptomino converter appended to a previously unknown Herschel-to-E converter, HRx93E -- which enables completely new Spartan Herschel conduits Rx155 and R194, among other things. October 10: Mitchell Riley's "LightCone" search program finds several new Spartan Herschel-to-glider converters. Editable news item submissions page • Archive •

Did you know... ... that there are no known direct reflectors for lightspeed wire signals, or for signals in 2c/3 wires, but that very large reflectors for these signals can be constructed using stable or periodic circuitry? ... that 24 ten-cell patterns exhibit infinite growth, with 17 unique pattern types, but that it has been proven that no nine-cell pattern exhibits infinite growth? ... that all still lifes up to 22 bits have a known glider synthesis, but that there is a 184-cell still life that cannot be synthesised, so there is a population threshold between these at which not all still lifes can be constructed? ... that the French kiss remained without a glider synthesis until 2013, and there are still fourteen 17-bit p2s that have not been successfully synthesized? ... that Adam P. Goucher's distributed Catagolue soup-search project, started in February 2015, has tested several orders of magnitude more random soups than any previous such project, and has contributed to the reduction of many glider construction recipes? ... that with the appearance of the 0E0P metacell, the number of periods for which strict volatility 1 oscillators were known went from 12 to infinity? ... that Copperhead is not only the first c/10 orthogonal spaceship ever found, but also remarkably compact for a pattern not discovered until 2016? ... that loafer is the fifth smallest non-flotilla spaceship, but was discovered 43 years after the four spaceships smaller than it? ... that despite being the fourth smallest non-flotilla orthogonal spaceship, loafer did not appear from a single randomly generated soup until 2020? ... that all known glider eaters take at least four ticks to recover to their original state after eating a glider?           Showing 10 items out of 197 More did you know... Pattern collection The LifeWiki contains one of the most comprehensive catalogues of patterns available on the internet. Within it you will find: 1718 patterns (including 701 oscillators, 204 spaceships and 374 still lifes); 3733 images (608 animated and 3125 static); Over 3000 downloadable pattern files; Glider syntheses for 987 patterns. Download pattern collection 6MB .zip archive containing the 5200+ Game of Life RLE pattern files used on the wiki Also available: 38KB .zip archive containing approximately 75 pattern files for other cellular automata