Heavyweight spaceship
| Heavyweight Spaceship | |||||||
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| Pattern type | Spaceship | ||||||
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| Number of cells | 13 | ||||||
| Bounding box | 7 × 4 | ||||||
| Direction | Orthogonal | ||||||
| Period | 4 (mod: Unknown) | ||||||
| Speed | c/2 | Unknown | ||||||
| Heat | 19 | ||||||
| Kinetic symmetry | Unspecified | ||||||
| Discovered by | John Conway | ||||||
| Year of discovery | 1970 | ||||||
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The heavyweight spaceship (or HWSS for short, or big fish) is the fourth most common spaceship (after the glider, lightweight spaceship and middleweight spaceship). It was found by John Conway in 1970 and travels at a speed of c/2 orthogonally. Its domino spark can be used to stabilize several tagalongs, including sidecar and half of x66. It is one of only three known spaceships that is a polyomino in any of its phases.
Image gallery
 Three Heavyweight spaceship eaters |
See also
External links
- The 1 thirteen-bit spaceship at Mark D. Niemiec's Life Page
Categories:
- Patterns
- Spaceships with 13 cells
- Periodic objects with minimum population 13
- Patterns with 13 cells
- Patterns found by John Conway
- Patterns found in 1970
- Patterns that can be constructed with 3 gliders
- Spaceships
- Spaceships with period 4
- Orthogonal spaceships
- Spaceships with speed c/2
- Spaceships with heat 19
- Glide symmetric spaceships