Pre-pulsar: Difference between revisions
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A pair of [[tub|tubs]] can be placed to eat half of the pre-pulsar as it replicates; this gives the [[period]] [[:Category:Oscillators with period 30|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 [[:Category:Oscillators with period 28|28]] and period [[:Category:Oscillators with period 29|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 [[:Category:Oscillators with period 47|47]] oscillators. | A pair of [[tub|tubs]] can be placed to eat half of the pre-pulsar as it replicates; this gives the [[period]] [[:Category:Oscillators with period 30|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 [[:Category:Oscillators with period 28|28]] and period [[:Category:Oscillators with period 29|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 [[:Category:Oscillators with period 47|47]] oscillators. | ||
==Image gallery== | |||
{| | |||
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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}}]] | |||
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==See also== | ==See also== | ||
*[[Pre-pulsar shuttle 29]] | *[[Pre-pulsar shuttle 29]] | ||
*[[Pre-pulsar shuttle 47]] | *[[Pre-pulsar shuttle 47]] | ||
Revision as of 13:03, 29 March 2009
| Pre-pulsar | |||||||
| View static image | |||||||
| 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.
Image gallery
 Download RLE: click here |
See also
External links
- Pre-pulsar at the Life Lexicon