Hooks
| Hooks | |||||||||||||
| View animated image | |||||||||||||
| View static image | |||||||||||||
| Pattern type | Oscillator | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 21 | ||||||||||||
| Bounding box | 11 × 10 | ||||||||||||
| Period | 5 (mod: 5) | ||||||||||||
| Heat | 4.4 | ||||||||||||
| Volatility | 0.39 | 0.39 | ||||||||||||
| Kinetic symmetry | n | ||||||||||||
| Discovered by | Unknown | ||||||||||||
| Year of discovery | Unknown | ||||||||||||
| |||||||||||||
| |||||||||||||
| |||||||||||||
| |||||||||||||
Hooks is a period-5 oscillator that is shown as the second pattern in the third row of Jason Summers' main period 5 collection, and also as the first pattern in the fourth row of Jason Summers' period 5 billiard collection.[1] A stator variant of this oscillator, featuring a carrier in place of a snake, appeared naturally on February 7, 2020, in a soup submitted to Catagolue by Rob Liston.[2]
Synthesis
Hooks can be converted from xs15_3pm86246 (whose synthesis was reduced from 8 to 7 gliders by KtT on August 31, 2024[3]) in 4 gliders.[4] The conversion also works for the carrier variant, whose predecessor still life xs15_3pm8628c has a 6G synthesis from August 30, 2022.
There is also a conversion from xs17_31e8628czw33 (which has an 8G synthesis) in 6G, which also works for the carrier variant.
See also
- Smallest period 5 oscillators
- Pentant, which uses a similar reaction
- 30P6.1, which uses the same catalyst but with two copies and with period 6
- 28P7.2, which uses the same catalyst but with two copies and with period 7
- Eater bridge eater, the catalyst itself (with a different stator)
References
- ↑ Jason Summers' jslife pattern collection.
- ↑ Ian07 (March 11, 2020). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ KtT (August 31, 2024). Re: Still Life Synthesis Thread (discussion thread) at the ConwayLife.com forums
- ↑ 4G xs15's -> Hooks:
Adam P. Goucher, on behalf of anonymous Catagolue submitter (July 17, 2024). Shinjuku contribution, lines 2717-to-2718
preceding this, a 6G conversion was found no later than June 20, 2021 (but added to Shinjuku only for the carrier version)
External links
- 21P5.2 at Heinrich Koenig's Game of Life Object Catalogs
- Patterns
- Oscillators with 21 cells
- Periodic objects with minimum population 21
- Patterns with 21 cells
- Patterns that can be constructed with 11 gliders
- Patterns that can be constructed with 10 gliders
- Oscillators
- Oscillators with period 5
- Oscillators with mod 5
- Oscillators with heat 4
- Oscillators with volatility 0.39
- Oscillators with strict volatility 0.39
- Oscillators with n symmetry