Difference between revisions of "Light bulb"
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m (viewerconfig) |
(Reduced house variant to 7 gliders, thereby reducing the snake variant to 26) |
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|isorulemin = B3ij/S2-cn3ejnr | |isorulemin = B3ij/S2-cn3ejnr | ||
|isorulemax = B2in34-ikrwy5-jqry6-in78/S01234-k5-e678 | |isorulemax = B2in34-ikrwy5-jqry6-in78/S01234-k5-e678 | ||
|synthesis = | |synthesis = 26 | ||
|synthesisRLE = true | |synthesisRLE = true | ||
|plaintext = true | |plaintext = true | ||
Revision as of 13:20, 16 July 2019
| Light bulb | |||||||||||
| View animated image | |||||||||||
| View static image | |||||||||||
| Pattern type | Oscillator | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Oscillator type | Babbling brook | ||||||||||
| Billiard table | |||||||||||
| Number of cells | 23 | ||||||||||
| Bounding box | 7 × 9 | ||||||||||
| Period | 2 | ||||||||||
| Mod | 2 | ||||||||||
| Heat | 3 | ||||||||||
| Volatility | 0.12 | ||||||||||
| Strict volatility | 0.12 | ||||||||||
| Rotor type | Filament | ||||||||||
| Discovered by | Unknown | ||||||||||
| Year of discovery | 1971 | ||||||||||
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Light bulb is a period 2 oscillator that was found in 1971. Its rotor, known as the filament,[1] is the only known 3-cell period 2 rotor, and it can be embedded in a slightly smaller stator, giving the 21-cell variant shown below. Two other variants of this oscillator are also known.[2] Various other small induction coils can also be used in place of the snake at the top of the bulb, including house and bookend, though these lead to larger bounding boxes.
An 11-glider synthesis is known for a stator variant of this oscillator which uses a house instead of a snake for stabilization.[3]
Image gallery
 A variant of the light bulb that is 2 cells smaller. |
References
- ↑ "Game of Life Dictionary". Pentadecathlon.com. Retrieved on 2016-10-02.
- ↑ "Period 2 Oscillator Rotors". Retrieved on March 16, 2009.
- ↑ Adam P. Goucher. "lightbulb_and_cis-C". Catagolue. Retrieved on May 24, 2019.
External links
- Light bulb at the Life Lexicon
Categories:
- Patterns
- Oscillators with 23 cells
- Periodic objects with minimum population 23
- Patterns with 23 cells
- Patterns found in 1971
- Patterns that can be constructed with 26 gliders
- Oscillators
- Babbling brooks
- Billiard tables
- Oscillators with period 2
- Oscillators with mod 2
- Oscillators with heat 3
- Oscillators with volatility 0.12
- Oscillators with strict volatility 0.12
- Oscillators with rotor Filament