Period-59 glider gun
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Period-59 glider gun | |||||
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Pattern type | Gun | ||||
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Number of cells | 167863 | ||||
Bounding box | 4091 × 3082 | ||||
Period | 59 | ||||
Barrels | 2 | ||||
Discovered by | Adam P. Goucher Jason Summers | ||||
Year of discovery | 2009 | ||||
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Period-59 glider gun is the first true period 59 gun to be discovered. It was discovered by Adam P. Goucher in 2009. Jason Summers helped by providing a period-59 five glider to six glider reaction and also a 180 degree reflector reaction.
The core of the gun is the 5-to-6 reaction (an over-unity reaction), composed of two copies of a mechanism hassling two pi-heptominoes, in a fashion reminescent of the P44 pi-heptomino hassler. Of the 11 glider streams linked to this:
- Two link together via a 180° reflection off a P59 oscillator.
- Four are pairwise linked to a single copy of the basic mechanism. This functions as a two-to-two glider reflection reaction on its own, rerouting two parallel glider streams (one incoming, one outgoing) into two sideways ones.
- Four of the core streams are redirected using 90° reflections off further p59 oscillators (and some tertiary pairs of reactors) and to link with the four streams from the secondary reactors.
- This leaves one output stream.
Discovery of the snark in 2013 enabled Dave Greene to build a much smaller variant with a bounding box of 405×355.[1]
Image gallery
References
- ↑ Dave Greene (April 28, 2013). "Re: Just the place for a Snark!". Retrieved on October 3, 2014.