p26 pre-pulsar shuttle
p26 pre-pulsar shuttle is a period-26 pre-pulsar shuttle oscillator discovered by David Buckingham on January 18, 1983 with an alternate stabilization using beehives rather than blinkers.[1] Its original form was the first period-26 oscillator to be found. It is composed of four 14-generation pre-pulsar shuttle mechanisms that use a blinker stabilization found by Noam Elkies on April 22, 1997,[2] as well as a central 12-generation pre-pulsar shuttle mechanism composed of four beacons. On November 17, 2016, Thunk found a smaller 14-generation pre-pulsar shuttle mechanisms, resulting in a 144-cell variant of this oscillator.
p26 pre-pulsar shuttle | |||||||||||
| |||||||||||
View animated image | |||||||||||
View static image | |||||||||||
Pattern type | Oscillator | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Oscillator type | Shuttle | ||||||||||
Number of cells | 200 | ||||||||||
Bounding box | 37×37 | ||||||||||
Period | 26 | ||||||||||
Mod | 26 | ||||||||||
Heat | 113.2 | ||||||||||
Volatility | 0.81 | ||||||||||
Strict volatility | 0.81 | ||||||||||
Discovered by | David Buckingham | ||||||||||
Year of discovery | 1983 | ||||||||||
| |||||||||||
| |||||||||||
The 200-cell variant was the smallest known period-26 oscillator (in terms of minimum population) until the discovery of the p26 glider shuttle in February 2012. The smallest known period-26 oscillator is currently 87P26.
Image gallery
See also
- Pre-pulsar shuttle oscillators
References
- Dean Hickerson's oscillator stamp collection.
- Jason Summers' all-osc oscillators collection