is a
puffer (or spaceship) whose back end appears to be unstable and
breaking apart, but which nonetheless survives. The exhaust
festers and clings to the back of the puffer/spaceship before
breaking off. The first known frothing puffers were c/2, and most
were found by slightly modifying the back ends of p2 spaceships. A
number of these have periods which are not a multiple of 4 (as with
some line puffers). Paul Tooke has also found c/3 frothing
puffers.
The following p78 c/2 frothing puffer was found by Paul Tooke in
April 2001.
Game of Life Explanation
The Game of Life is not your typical computer game. It is a cellular
automaton, and was invented by Cambridge mathematician John Conway.
This game became widely known when it was mentioned in an article
published by Scientific American in 1970. It consists of a grid of
cells which, based on a few mathematical rules, can live, die or
multiply. Depending on the initial conditions, the cells form various
patterns throughout the course of the game.
Rules
For a space that is populated:
Examples
Each cell with one or no neighbors dies, as if by solitude.
Each cell with four or more neighbors dies, as if by
overpopulation.
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