This week's featured article
| The R-pentomino is a methuselah that was found by John Conway in 1970. It is by far the most active polyomino with fewer than six cells; all of the others stabilize in at most 10 generations, but the R-pentomino does not do so until generation 1103, by which time it has a population of 116. It releases a glider in generation 69, which was noticed by Richard K. Guy and was the first glider ever observed. The stable pattern that results from the R-pentomino consists of eight blocks, six gliders, four beehives, four blinkers, one boat, one loaf, and one ship.
| The LifeWiki contains one of the most comprehensive catalogues of patterns available on the internet. Within it you will find:
Did you know...
- ...that there are 71 distinct ways for two gliders to collide, but it is unknown how many distinct 3-glider collisions there are?
- ...that the largest interesting pattern constructed, the caterpillar, contains over 11 million cells?
- ...that the Gosper glider gun was the first pattern to be discovered that exhibits infinite growth?
- ...that the block-laying switch engine and the glider-producing switch engine are the only two infinitely-growing patterns that are known to have ever occurred naturally from a random starting configuration?
- ...that oscillators are known that oscillate at all periods other than 19, 23, 34, 38, 41, 43 and 53?
- ...that the pentadecathlon and the blinker are the only known oscillators that are polyominos in more than one phase?
- ...that it is impossible for a period 3 oscillator to be a phoenix?
- ...that the methuselah with the longest known lifespan, Fred, lasts for over 35,000 generations before stabilizing?
- ...that replicators are known to exist in Conway's Game of Life, but none have yet been found?
- ...that the first known period 37 and 51 oscillators were found in 2009?