Difference between revisions of "Rob's p16"
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'''Rob's p16''' is a {{period|16}} [[oscillator]] that was found by [[Rob Liston]] on February 9, {{year|2020}} using [[Adam P. Goucher]]'s [[apgsearch]],<ref>{{CiteCatagolue|page=haul/b3s23/G1/477c29ce65dab871f2889810e344bece|title=Haul|accessdate=February 10, 2020}}</ref> and first noticed by a human the next day.<ref name="post89261" /> It is the smallest known period-16 oscillator in terms of both [[population]] and [[bounding box]], the first p16 to appear [[natural]]ly, the first known [[strictly volatile]] p16, and the first new [[rotor]] discovered by asymmetric soup search since the 1980s. It also gives off weak [[spark]]s,<ref name="post89263" /> which can be used to [[filter]] an [[LWSS]] stream resulting in a reduction to the period-16 pseudo-[[glider gun]].<ref name="post89318" /> | '''Rob's p16''' is a {{period|16}} [[oscillator]] that was found by [[Rob Liston]] on February 9, {{year|2020}} using [[Adam P. Goucher]]'s [[apgsearch]],<ref>{{CiteCatagolue|page=haul/b3s23/G1/477c29ce65dab871f2889810e344bece|title=Haul|accessdate=February 10, 2020}}</ref> and first noticed by a human the next day.<ref name="post89261" /> It is the smallest known period-16 oscillator in terms of both [[population]] and [[bounding box]], the first p16 to appear [[natural]]ly, the first known [[strictly volatile]] p16, and the first new [[rotor]] discovered by asymmetric soup search since the 1980s. It also gives off weak [[spark]]s,<ref name="post89263" /> which can be used to [[filter]] an [[LWSS]] stream resulting in a reduction to the period-16 pseudo-[[glider gun]].<ref name="post89318" /> | ||
A {{gliders|17}} [[synthesis]] of this oscillator was found by [[Tanner Jacobi]] the day of its discovery.<ref name="post89284" /> | A {{gliders|17}} [[synthesis]] of this oscillator was found by [[Tanner Jacobi]] the day of its discovery.<ref name="post89284" /> Liston found a second Rob's p16 soup on June 30.<ref name="post99810" /> | ||
==See also== | ==See also== | ||
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|author = Tanner Jacobi | |author = Tanner Jacobi | ||
|date = February 11, 2020 | |date = February 11, 2020 | ||
}}</ref> | |||
<ref name="post99810">{{LinkForumThread | |||
|format = ref | |||
|title = Re: Soup search results | |||
|p = 99810 | |||
|author = Aidan F. Pierce | |||
|date = June 30, 2020 | |||
}}</ref> | }}</ref> | ||
</references> | </references> | ||
Revision as of 16:52, 30 June 2020
| Rob's p16 | |||||||||
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 21 | ||||||||
| Bounding box | 10 × 12 | ||||||||
| Period | 16 | ||||||||
| Mod | 8 | ||||||||
| Heat | 21 | ||||||||
| Volatility | 1.00 | ||||||||
| Strict volatility | 1.00 | ||||||||
| Discovered by | Rob Liston | ||||||||
| Year of discovery | 2020 | ||||||||
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- Not to be confused with Rich's p16.
Rob's p16 is a period-16 oscillator that was found by Rob Liston on February 9, 2020 using Adam P. Goucher's apgsearch,[1] and first noticed by a human the next day.[2] It is the smallest known period-16 oscillator in terms of both population and bounding box, the first p16 to appear naturally, the first known strictly volatile p16, and the first new rotor discovered by asymmetric soup search since the 1980s. It also gives off weak sparks,[3] which can be used to filter an LWSS stream resulting in a reduction to the period-16 pseudo-glider gun.[4]
A 17-glider synthesis of this oscillator was found by Tanner Jacobi the day of its discovery.[5] Liston found a second Rob's p16 soup on June 30.[6]
See also
References
- ↑ Adam P. Goucher. "Haul". Catagolue. Retrieved on February 10, 2020.
- ↑ Tanner Jacobi (February 10, 2020). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Matthias Merzenich (February 10, 2020). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Tanner Jacobi (February 11, 2020). Re: Execution of Old Guns by Variable-Speed Firing Squad (discussion thread) at the ConwayLife.com forums
- ↑ Tanner Jacobi (February 10, 2020). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ Aidan F. Pierce (June 30, 2020). Re: Soup search results (discussion thread) at the ConwayLife.com forums
External links
Categories:
- Patterns
- Oscillators with 21 cells
- Periodic objects with minimum population 21
- Patterns with 21 cells
- Patterns found by Rob Liston
- Patterns found in 2020
- Patterns that can be constructed with 17 gliders
- Oscillators
- Oscillators with period 16
- Oscillators with mod 8
- Oscillators with heat 21
- Oscillators with volatility 1.00
- Oscillators with strict volatility 1.00
- Flipping oscillators
- Sparkers
- Sparkers with period 16
- Weak sparkers
- Natural periodic objects