Crown
| Crown | |||||||||||||
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| Pattern type | Oscillator | ||||||||||||
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| Number of cells | 63 | ||||||||||||
| Bounding box | 23 × 15 | ||||||||||||
| Period | 12 (mod: 12) | ||||||||||||
| Heat | 51.7 | ||||||||||||
| Volatility | 0.73 | 0.23 | ||||||||||||
| Kinetic symmetry | n | ||||||||||||
| Discovered by | Noam Elkies | ||||||||||||
| Year of discovery | 1994 | ||||||||||||
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Crown is a period-12 oscillator that was found by Noam Elkies on November 19, 1994. Alternatively, it may refer just to the 10-cell piece at the top of the oscillator in generation 10 (shown below in green) that is hassled by two caterers and a heavyweight emulator. The original form of this oscillator used T-nosed p4s instead of caterers. The form with caterers was found by Elkies on January 3, 1995.[1]
One day later, Elkies used this oscillator in the following 144-cell period-24 oscillator.[1] Further applications later can be found in the pi orbital and p156 Hans Leo hassler.
| 144P24, two crowns hassling a blinker (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
Variants
By replacing the caterers with extensible p3 oscillators, an extensible crown can be made:
| (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
On May 10, 2022, iNoMed found a 58-cell version of this oscillator, using a custom low-clearance 31-cell domino sparker:[2]
| (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here |
See also
References
- ↑ 1.0 1.1 Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
- ↑ iNoMed (May 10, 2022). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
External links
- Crown at the Life Lexicon
- Crown at Adam P. Goucher's Catagolue
- Patterns
- Oscillators with 63 cells
- Periodic objects with minimum population 63
- Patterns with 63 cells
- Patterns found by Noam Elkies
- Patterns found in 1994
- Patterns that can be constructed with 48 gliders
- Patterns that can be constructed with 41 gliders
- Oscillators
- Oscillators with period 12
- Oscillators with mod 12
- Oscillators with heat 51
- Oscillators with volatility 0.73
- Oscillators with strict volatility 0.23
- Oscillators with n symmetry
- Sparkers
- Sparkers with period 12
- Domino sparkers
- Moderate sparkers