Difference between revisions of "P72 quasi-shuttle"
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'''P72 quasi-shuttle''' is a {{period|72}} [[oscillator]] (a [[twin bees shuttle]] variant) with found by [[Jason Summers]] | '''P72 quasi-shuttle''' is a {{period|72}} [[oscillator]] (a [[twin bees shuttle]] variant) with found by [[Jason Summers]] on August 19, {{year|2005}}.<ref>{{CiteSummersPattern|name=jslife|accessdate=March 14, 2020}}</ref> It consists of two [[B-heptomino]]es being [[hassle]]d by two [[figure eight]]s and two [[unix|unices]]. In 18 generations the B-heptominoes are flipped into a [[century|centuries]] and a pair of [[block]]s by unices, which then reacts with the blocks and figure eights to be flipped back into B-heptominoes in 61 generations, but with extra blocks. The extra blocks move the B-heptominoes forward without leaving extra centuries. Although this looks at first sight like a [[shuttle]], it isn't really, because each side of the oscillator uses a different hassling reaction. Like a regular twin bees shuttle, it can reflect gliders. | ||
==References== | |||
<references /> | |||
==External links== | ==External links== | ||
Revision as of 18:58, 14 March 2020
| p72 quasi-shuttle | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 84 | ||||||||
| Bounding box | 37 × 23 | ||||||||
| Period | 72 | ||||||||
| Mod | 72 | ||||||||
| Heat | 80.6 | ||||||||
| Volatility | 0.96 | ||||||||
| Strict volatility | 0.59 | ||||||||
| Discovered by | Jason Summers | ||||||||
| Year of discovery | 2005 | ||||||||
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P72 quasi-shuttle is a period-72 oscillator (a twin bees shuttle variant) with found by Jason Summers on August 19, 2005.[1] It consists of two B-heptominoes being hassled by two figure eights and two unices. In 18 generations the B-heptominoes are flipped into a centuries and a pair of blocks by unices, which then reacts with the blocks and figure eights to be flipped back into B-heptominoes in 61 generations, but with extra blocks. The extra blocks move the B-heptominoes forward without leaving extra centuries. Although this looks at first sight like a shuttle, it isn't really, because each side of the oscillator uses a different hassling reaction. Like a regular twin bees shuttle, it can reflect gliders.
References
- ↑ Jason Summers' jslife pattern collection. Retrieved on March 14, 2020.
External links
- p72 quasi-shuttle at the Life Lexicon
- 84P72.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 84 cells
- Periodic objects with minimum population 84
- Patterns with 84 cells
- Patterns found by Jason Summers
- Patterns found in 2005
- Patterns that can be constructed with 26 gliders
- Outer-totalistically endemic patterns
- Oscillators
- Oscillators with period 72
- Oscillators with mod 72
- Oscillators with heat 80
- Oscillators with volatility 0.96
- Oscillators with strict volatility 0.59
- Patterns with bilateral orthogonal symmetry