This week's featured article

An eater is any still life that has the ability to interact with certain patterns without suffering any permanent damage. The term may also sometimes specifically refer to eater 1, a very common and wellknown eater. The block was the first known eater, being found to be capable of eating beehives from a queen bee, allowing the construction of the queen bee shuttle. The animation to the right shows an eater 5 feasting on an incoming stream of gliders.
Eaters are extremely important, as they help stabilize and control debris created by complex reactions, allowing for the manipulation of the useful parts of those reactions. Stable reflectors in particular heavily rely on a variety of eaters to work.

In the news

 Mar. 7: A spider synthesis using 574 gliders and 9 LWSSes is found by Martin Grant. [1]
 Mar. 3: A period120 oscillator, the highest period thus far, occurs from a natural soup on Catagolue.
 Mar. 2: Several symmetricsoup diehards with lifespans over 1500 ticks have been found by 'carybe', using apgsearch..
 Feb. 12: A lightweight Schick engine appears from a natural (C1) soup on Catagolue.
 Feb. 9: A 47,575tick 16x16 methuselah found by Adam Goucher via apgsearch yields a 16cell, 47,487tick methuselah. This discovery skips over several empty 1000tick bins in Catagolue above the previous record 16x16 methuselah, Homer.
 Feb. 4: A glider detection and removal upgrade in apgsearch version 4.91 gives a search speed boost of well over 50% compared to version 4.88.
 Feb. 4: Tanner Jacobi and Martin Grant find a recipe, subsequently reduced to 88 gliders, for the firstever synthesizable c/4 spaceship, 46P4H1V0.

Pattern collection

The LifeWiki contains one of the most comprehensive catalogues of patterns available on the internet. Within it you will find:


Did you know...

 ... that the first stable reflector was found in October 1996, and the first fast stable reflector appeared in 2013, allowing the construction of oscillators of all periods ≥43 ticks?
 ... that nineteen spaceship velocities have been constructed, excluding several infinitely adjustable families of ships?
 ... that there are 71 distinct ways for two gliders to collide, but it is unknown how many distinct 3glider collisions there are?
 ... that to display the smallest known gun pattern for a Gemini spaceship at 1 cell = 1 pixel, on a standarddensity video monitor, a screen over one mile square would be needed?
 ... that no oddperiod glider guns were known before 1995, when a period 565 p5sparkassisted Bheptomino loop was constructed by David Buckingham?
 ... that even though the speed limit for spaceships is c/2 in a vacuum, in a medium of stripes agar there are "spaceships" that can travel at lightspeed along the stripes, or two thirds of lightspeed perpendicular to the stripes?
 ... that the smallest known spacefiller pattern consists of 187 cells?
 ... that the smallest known sawtooth pattern in Conway's Life consists of only 177 ON cells?
 ... that there are now over a hundred and twenty known Herschel conduits, counting stable conduits only, and a much larger number if oscillatorsupported conduits are included?
 ... that Demonoids, Caterloopillars, Orthogonoids, halfbakery knightships are the only known types of spaceships with fixed slope but adjustable speed  not counting 0E0P metacellbased patterns?

