This week's featured article
|A methuselah is, roughly speaking, a pattern that takes a large number of generations in order to stabilize (known as its lifespan) and becomes much larger than its initial configuration at some point during its evolution. In particular, patterns that grow forever are not methuselahs. Their exact definition is not completely agreed upon, and most definitions place restrictions on the number of cells in the initial pattern.
Martin Gardner defined methuselahs as patterns of fewer than ten cells that take longer than 50 generations to stabilize, though some sources allow for more cells or require a longer lifespan.
In the news
|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 now over a hundred and twenty known Herschel conduits, counting stable conduits only, and a much larger number if oscillator-supported conduits are included?
- ... that Demonoids, Caterloopillars, Orthogonoids, half-bakery knightships, loopships and camelships are the only known types of spaceships with fixed slope but adjustable speed -- not counting 0E0P metacell-based patterns?
- ... that a pattern exists in which no cell in the unbounded Life plane ever becomes periodic?
- ... that several different universal constructors in Conway’s Life have been shown to be capable of constructing their own circuitry?
- ... that there are dozens of known Cordership variants, including puffers, rakes and wickstretchers, with periods of any multiple of 96?
- ... that greyships have been constructed with speeds of c/2, c/3, c/4, c/5, and 2c/5?
- ... that most greyships travel parallel to the stripes in their included agars, but a few travel perpendicular to the stripes, or "against the grain"?
- ... that a pattern has been constructed that calculates and prints out the digits of pi in decimal, and a similar one prints out the decimal digits of the Golden Ratio?
- ... that several different patterns have been constructed to calculate and display the sequence of prime numbers, and some have been adapted to display only twin primes or Fermat primes?
- ... that two completely different types of oblique spaceships, the waterbear and the half-baked knightship, were constructed in 2014?