Queen bee shuttle
| Queen bee shuttle | |||||||
| |||||||
| View animated image | |||||||
| View static image | |||||||
| Pattern type | Shuttle Oscillator | ||||||
|---|---|---|---|---|---|---|---|
| Number of cells | 20 | ||||||
| Bounding box | 22 × 7 | ||||||
| Period | 30 (mod: Unknown) | ||||||
| Heat | 17.9 | ||||||
| Volatility | 0.96 | Unknown | ||||||
| Kinetic symmetry | Unspecified | ||||||
| Discovered by | Bill Gosper | ||||||
| Year of discovery | 1970 | ||||||
| |||||||
| |||||||
| |||||||
The queen bee shuttle (or basic shuttle[1]) is a period 30 shuttle oscillator in which a queen bee travels back and forth between two stabilizing ends. The shuttles were originally stabilized against one another in a square of eight shuttles, though there are now a number of known ways to stabilize the ends. Some simpler methods are shown here involving blocks; for a method involving an eater 1 see buckaroo. The queen bee shuttle is the basis of all known true period 30 guns (including the famous Gosper glider gun). It was found by Bill Gosper in 1970 and was the first period 30 oscillator to be found. It is the smallest known oscillator with period greater than 15.[2]
The cis-queen bee shuttle (shown to the right) and the trans-queen bee shuttle (shown below) are about the 18th and 19th most common naturally-occurring oscillators.[3]
Variations
The queen bee loop (or ouroboros bees), another form of the queen bee shuttle that was found in 1970 (also by Bill Gosper), is a closed loop made of four queen bees that clean up each other's beehives. It was forgotten about in many sources and independently rediscovered in 2008 by Nicolay Beluchenko.[4] It is also possible to create a partial loop oscillator consisting of two or three queen bees by removing one or two of the queen bees in the loop and placing two stabilizing blocks appropriately.
Image gallery
File:Queenbee3.png A slightly different queen bee shuttle, known as the trans-queen bee shuttle Download RLE: click here |
 Queen bee shuttle predecessor made up of a pi-heptomino, two blinkers and two blocks. Found by Gosper in April 1992 RLE: here |
See also
References
- ↑ "Basic shuttle". The Life Lexicon. Stephen Silver. Retrieved on June 11, 2009.
- ↑ "Class 2 Objects Catalog - Oscillators". Retrieved on April 8, 2009.
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- ↑ H. Koenig (November 23, 2008). "New Small Period Oscillators". Game of Life News. Retrieved on June 3, 2009.
External links
- Queen bee shuttle at the Life Lexicon
One-shuttle variants
Two-shuttle variants (straight)
Two-shuttle variants (bent)
Three-shuttle variants
Four-shuttle variants (loops)
- xp30_wccy0ss203y5cczy6103y4oooz88x88y845x54z016661y3gzwccy5h0heey0cczy91 at Adam P. Goucher's Catagolue
Four-shuttle variants (stars)
- xp30_yd33zybgka9akgzzy2g8gcyf3s2k8xccz33x1243cyf301zydggxggzye25952zygcc at Adam P. Goucher's Catagolue
- xp30_yd33zydgggzyb6504056zggy3o42my8b12sy3ccz11y31246y8321zyc3589853zzyf66 at Adam P. Goucher's Catagolue
- xp30_ye33zybgka9akgzzggy0g8gcyf3s2k8xooz11x1243cyf301zydggxggzye25952zyfcc at Adam P. Goucher's Catagolue
- xp30_ye33zyc8kqrqk8zzy2g8koygsq4ogxooz33x134b7yg3521zzyd25brb52zygoo at Adam P. Goucher's Catagolue
- xp30_ye33zycgka9akgzzggxg84o6yf6o48gxooz11y01216yf6121zycggxggzyd25952zyfcc at Adam P. Goucher's Catagolue
- xp30_ye33zydgggzyb6504056zooy3o42my8b12sy3oozy51246y8321zyc3589853zzye66 at Adam P. Goucher's Catagolue
- xp30_ye33zzyb4k888k4zooy63s2k81210g84o6y6oozy8301w8kik81216zyc11x11zzye66 at Adam P. Goucher's Catagolue
- xp30_yf33zyc8kqrqk8zzggxgo4qsygok8gy0ggz11y01253yg7b431x11zzyd25brb52zyfoo at Adam P. Goucher's Catagolue
- xp30_yf33zyc8kqrqk8zzggy0g8koygsq4ogxggz11x134b7yg3521y011zzyd25brb52zyfoo at Adam P. Goucher's Catagolue
- xp30_yf33zycgka9akgzzggxg84o6yf6o48gxooz11y01216yf6121zycggxggzyd25952zyecc at Adam P. Goucher's Catagolue
- xp30_yf33zzyc4k888k4zggy66o48g01218k2s3y6ccz11y661218kik8w103zyb11x11zzyd66 at Adam P. Goucher's Catagolue
Four-shuttle variants (other)
Eight-shuttle variants
- Patterns
- Oscillators with 20 cells
- Periodic objects with minimum population 20
- Patterns with 20 cells
- Patterns found by Bill Gosper
- Patterns found in 1970
- Patterns that can be constructed with 6 gliders
- Oscillators
- Shuttles
- Shuttles with 20 cells
- Oscillators with period 30
- Oscillators with heat 17
- Oscillators with volatility 0.96