Tail
Tail | |||||||
View static image | |||||||
Pattern type | Still life component | ||||||
---|---|---|---|---|---|---|---|
Number of cells | 4 | ||||||
Bounding box | 2 × 3 | ||||||
Discovered by | Unknown | ||||||
Year of discovery | 1970 | ||||||
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Tail (sometimes referred to as L or J) is a tetromino and great-grandparent of the beehive. It can often be attached to still lifes to create a larger still life. Even more important are the ways in which it may be attached to a marginally stable object of any kind to obtain overall stability while suppresing (or possibly exploiting) its own spark. The simplest such example is eater 1, in which a tail and a pre-block mutually stabilize one another. A tail can also stabilize one end of a fuse (e.g. as in eg. fuse with two tails).
As a still life component
A green background indicates that the object the tail is added to is stable without it; a red background indicates this is not the case.
Object | Population | Other part | ||
---|---|---|---|---|
Eater 1 | 7 | Pre-block | ||
Tub with tail | 8 | Tub | ||
Hook with tail | Hook | |||
Cis-boat with tail | 9 | Boat | ||
Trans-boat with tail | ||||
Long hook with tail | Long hook | |||
Hat | Unnamed | |||
Cis-barge with tail | 10 | Barge | ||
Trans-barge with tail | ||||
Beehive with tail | Beehive | |||
Claw with tail | Claw | |||
Cis-very long hook with tail | Very long hook | |||
Trans-very long hook with tail | ||||
Loop | Unnamed |
Long^3 tail
Long3 tail refers to two unstable objects (cis and trans versions). Their significance is as a component of other objects, including the still lifes trans-tub with long3 tail, cis-tub with long3 tail, trans-boat with long3 tail and cis-boat with long3 tail, each of which uses a stable object that shares the cell at the end of the tail.
Trans long3 tail (click above to open LifeViewer) RLE: here Plaintext: here |
Long^4 tail
Long4 tail refers to two unstable objects (cis and trans versions). Their significance is as a component of other objects, including the still lifes tub with long4 tail, cis-tub with long4 tail and trans-tub with long4 tail, each of which uses a stable object that shares the cell at the end of the tail.
Trans long4 tail (click above to open LifeViewer) RLE: here Plaintext: here |