p50 glider shuttle
| p50 glider shuttle | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Oscillator type | Relay | ||||||||
| Number of cells | 188 | ||||||||
| Bounding box | 33 × 33 | ||||||||
| Period | 50 (mod: 25) | ||||||||
| Heat | 40.7 | ||||||||
| Volatility | 0.57 | 0.34 | ||||||||
| Kinetic symmetry | /xc | ||||||||
| Discovered by | Dean Hickerson | ||||||||
| Year of discovery | 1992 | ||||||||
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The p50 glider shuttle is a period-50 shuttle oscillator found in its original form by Dean Hickerson on March 19, 1992[1] and was the first period 50 oscillator to be discovered. Its original form used an early version of toaster and was based on a period 66 oscillator[2] discovered by Robert Wainwright in September, 1984.
The oscillator works by using two copies of eater 3 and four copies of a period-5 sparker found by Noam Elkies to shuttle two gliders back and forth. By increasing the distance between the two reflectors, oscillators of periods 50 + 40n can be created. 5blink works in place of Elkies' p5 sparker, but only for periods above the minimum period. In March, 1992 Hickerson created a related oscillator by crossing two pairs of gliders using rephasers, which allowed the construction of oscillators of periods 230 + 40n.
Gallery
| A related p230 oscillator discovered by Dean Hickerson (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
See also
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on June 3, 2022.
- ↑ patterns/p66.rle; (Catagolue link)
(note that it is the first extension of the p42 glider shuttle)
External links
- Patterns
- Oscillators with between 180 and 189 cells
- Periodic objects with minimum population between 180 and 189
- Patterns with between 180 and 189 cells
- Patterns found by Dean Hickerson
- Patterns found in 1992
- Oscillators
- Relays
- Oscillators with period 50
- Oscillators with mod 25
- Oscillators with heat 40
- Oscillators with volatility 0.57
- Oscillators with strict volatility 0.34
- Oscillators with /xc symmetry