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The lightweight spaceship

Returning to Conway’s Game of Life (B3/S23), the next smallest spaceship is the “lightweight spaceship”, which travels orthogonally (that is, either vertically or horizontally) at speed c/2. Like the glider, it has period 4:

The lightweight spaceship moving from left to right.
The lightweight spaceship moving from left to right.

Of course, what happens when two spaceships collide depends on the exact configuration of the collision. Below two lightweight spaceships collide and produce two gliders.

Two lightweight spaceships collide and produce two gliders.


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