Light bulb
Jump to navigation
Jump to search
| 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 | ||||||||||
| |||||||||||
| |||||||||||
| |||||||||||
| |||||||||||
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, (the latter of which has a known 6-glider synthesis[3]) though these lead to larger bounding boxes.
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-hook". Catagolue. Retrieved on July 16, 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