Centinal: Difference between revisions
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'''Centinal''' is a {{period|100}} [[shuttle]] [[oscillator]] that was found by [[Bill Gosper]] no earlier than {{year|1973}} and no later than 1987, being the first oscillator of this period to be discovered. It combines the mechanisms of the [[Twin bees shuttle|period 46]] and [[P54 shuttle|period 54]] shuttles. Its [[duoplet]] [[spark]] is able to reflect gliders by 90 degrees, a property that Gosper used circa 1984 to construct a p1100 MWSS gun.<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> | '''Centinal''' is a {{period|100}} [[shuttle]] [[oscillator]] that was found by [[Bill Gosper]] no earlier than {{year|1973}} and no later than 1987, being the first oscillator of this period to be discovered. It combines the mechanisms of the [[Twin bees shuttle|period 46]] and [[P54 shuttle|period 54]] shuttles. Its [[duoplet]] [[spark]] is able to reflect gliders by 90 degrees, a property that Gosper used circa 1984 to construct a p1100 [[MWSS]] gun.<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref><ref>{{LinkGoLNews|2007/12/early_mwss_gun_in_golly_13.html|title=Early MWSS gun in Golly 1.3|date=December 17, 2007|author=Dave Greene}}</ref> | ||
==Gallery== | ==Gallery== | ||
Revision as of 08:17, 28 May 2022
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| Pattern type | Oscillator | ||||||||||
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| Oscillator type | Shuttle | ||||||||||
| Number of cells | 70 | ||||||||||
| Bounding box | 52 × 17 | ||||||||||
| Period | 100 (mod: 100) | ||||||||||
| Heat | 52 | ||||||||||
| Volatility | 0.95 | 0.95 | ||||||||||
| Kinetic symmetry | Unspecified | ||||||||||
| Discovered by | Bill Gosper | ||||||||||
| Year of discovery | Unknown | ||||||||||
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Centinal is a period-100 shuttle oscillator that was found by Bill Gosper no earlier than 1973 and no later than 1987, being the first oscillator of this period to be discovered. It combines the mechanisms of the period 46 and period 54 shuttles. Its duoplet spark is able to reflect gliders by 90 degrees, a property that Gosper used circa 1984 to construct a p1100 MWSS gun.[1][2]
Gallery
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See also
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
- ↑ Early MWSS gun in Golly 1.3 at Game of Life News. Posted by Dave Greene on December 17, 2007.
External links
- Centinal at the Life Lexicon
- Centinal at Adam P. Goucher's Catagolue (extended)
- 70P100.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 70 cells
- Periodic objects with minimum population 70
- Patterns with 70 cells
- Patterns found by Bill Gosper
- Patterns that can be constructed with 16 gliders
- Oscillators
- Shuttles
- Oscillators with period 100
- Oscillators with mod 100
- Oscillators with heat 52
- Oscillators with volatility 0.95
- Oscillators with strict volatility 0.95
- Sparkers
- Sparkers with period 100
- V sparkers
- Strong sparkers
- Reflecting duoplet sparkers
- Patterns with bilateral orthogonal symmetry