Pre-pulsar: Difference between revisions

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==External links==
==External links==
[http://www.argentum.freeserve.co.uk/lex_p.htm#prepulsar Pre-pulsar] at the Life Lexicon
*[http://www.argentum.freeserve.co.uk/lex_p.htm#prepulsar Pre-pulsar] at the Life Lexicon

Revision as of 16:27, 28 March 2009

Pre-pulsar
x = 9, y = 3, rule = B3/S23 3o3b3o$obo3bobo$3o3b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
Pattern type Miscellaneous
Number of cells 16
Bounding box 9 × 3
Static symmetry Unspecified
Discovered by Unknown
Year of discovery Unknown

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.

See also