Pre-pulsar: Difference between revisions
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|[[Image:Prepulsarpredecessor.png|framed|left|A common four-generation [[predecessor]] of the pre-pulsar that consists of two [[T-tetromino]]es<br />{{JavaRLE|prepulsarpredecessor}}]] | |[[Image:Prepulsarpredecessor.png|framed|left|A common four-generation [[predecessor]] of the pre-pulsar that consists of two [[T-tetromino]]es<br />{{JavaRLE|prepulsarpredecessor}}]] | ||
|[[Image:Skewedprepulsar.png|framed|left|A skewed pre-pulsar<br/>{{JavaRLE|skewedprepulsar}}]] | |[[Image:Skewedprepulsar.png|framed|left|A skewed pre-pulsar<br/>{{JavaRLE|skewedprepulsar}}]] | ||
|[[Image:minprepulsar.GIF|framed|left|The smallest predecessor of the pulsar has only seven cells.]] | |||
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Revision as of 23:42, 21 October 2011
| Pre-pulsar | |||||||
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| Pattern type | Miscellaneous | ||||||
|---|---|---|---|---|---|---|---|
| Number of cells | 16 | ||||||
| Bounding box | 9 × 3 | ||||||
| Static symmetry | Unspecified | ||||||
| Discovered by | Unknown | ||||||
| Year of discovery | Unknown | ||||||
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The pre-pulsar is a common predecessor of the pulsar. It duplicates itself after 15 generations, although it fails to be a true replicator because of the way that the two copies then interact.
A pair of tubs can be placed to eat half of the pre-pulsar as it replicates; this gives the period 30 oscillator Eureka, where the pre-pulsar's replication becomes a movement back and forth. The replication of the pre-pulsar can also be made to occur in just 14 generations as half of it is eaten; this allows the construction of period 28 and period 29 oscillators, and is in fact the only known method for creating a period 29 oscillator. The pre-pulsar is also a vital component of the only known method for constructing period 47 oscillators, and a similar reaction is the key component in the first discovered period 22 oscillator.
A skewed pre-pulsar is like a pre-pulsar, however, the pre-traffic lights it is composed of are vertically skewed by two cells. Despite this it manages to replicate itself and becomes two skewed halves of a pulsar. This form, however, is unstable and so is not truly a pulsar predecessor, but it can be hassled similarly to a normal pre-pulsar by oscillators and spaceships
Image gallery
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See also
External links
- Pre-pulsar at the Life Lexicon