The large and distinctive long-lived spark
produced, most commonly, by the twin bees shuttle. It starts off
as shown below.
After 3 generations it becomes symmetric along the horizontal axis,
after 9 generations it becomes symmetric along the vertical axis
also, and finally dies after 18 generations.
Since the spark is isolated and long-lived, there are many possible
perturbations that it can perform. One of the most useful is
demonstrated in metamorphosis where a glider is converted into a
LWSS. Another useful one can turn a LWSS by 90 degrees:
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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