p26 pre-pulsar shuttle
p26 pre-pulsar shuttle | |||||||||||
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Pattern type | Oscillator | ||||||||||
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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 | ||||||||||
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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.
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
![]() A pre-pulsar shuttle 26 variant with a minimum population of 144. View animated image. RLE: here Catagolue: here |
See also
References
- ↑ Dean Hickerson's oscillator stamp collection.
- ↑ Jason Summers' all-osc oscillators collection
External links
- Patterns
- Oscillators with 200 cells
- Patterns with 200 cells
- Patterns found by David Buckingham
- Patterns found in 1983
- Oscillators
- Periodic objects with minimum population 200
- Shuttles
- Oscillators with period 26
- Oscillators with mod 26
- Oscillators with heat 113
- Oscillators with volatility 0.81
- Oscillators with strict volatility 0.81
- Patterns with complete square symmetry
- Pre-pulsar shuttle oscillators