Sidecar
| Sidecar | |||||||||
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| Pattern type | Tagalong Spaceship | ||||||||
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| Number of cells | 24 | ||||||||
| Bounding box | 9 × 12 | ||||||||
| Frequency class | 47 | ||||||||
| Direction | Orthogonal | ||||||||
| Period | 4 (mod: 4) | ||||||||
| Speed | c/2 | 2c/4 | ||||||||
| Heat | 33.5 | ||||||||
| Kinetic symmetry | n | ||||||||
| Discovered by | Hartmut Holzwart | ||||||||
| Year of discovery | 1992 | ||||||||
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Sidecar is a c/2 orthogonal spaceship that was found by Hartmut Holzwart in 1992. Alternatively, it may refer just to the tagalong (displayed in green, in one phase it is made of a LWSS and a banana spark) that is attached to the heavyweight spaceship. One heavyweight spaceship can support two sidecars.
The sidecar can be destroyed by an eater 1 in a way that doesn't affect the heavyweight spaceship, which can be then destroyed by known means, e. g. with the block and pond.
The highlighted sidecar
More generally but uncommonly, a sidecar can refer to any spaceship component which is unstable on its own but can function when attached to the side of a spaceship, in much the same way that a tagalong can attach to the back of a spaceship or a pushalong to the front of a spaceship.[1]
Occurrence
- Main article: List of natural spaceships
It first appeared naturally on May 12, 2019, in a G1 haul submitted to Catagolue by Rob Liston.[2]
Synthesis and constructions
There is a 5-glider component that adds a sidecar to a HWSS, so the entire spaceship can be synthesised with 8 gliders. The easy synthesis has allowed for a period-60 sidecar gun[3] and a stable glider-to-sidecar converter with repeat time 158 ticks.[4]
| Period-60 sidecar gun by Jason Summers on March 7, 2000 (click above to open LifeViewer) RLE: here Plaintext: here |
See also
References
- ↑ David Bell (December 25, 2017). Re: Cordership made using individual switch engines (discussion thread) at the ConwayLife.com forums
- ↑ Ian07 (May 12, 2019). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ Jason Summers' jslife pattern collection. Retrieved on June 7, 2009.
- ↑ Goldtiger997 (April 13, 2017). Re: Stable signal converters (discussion thread) at the ConwayLife.com forums
External links
- Sidecar at the Life Lexicon
- 24P4H2V0.7 at Heinrich Koenig's Game of Life Object Catalogs
- Sidecar at Adam P. Goucher's Catagolue
- Patterns
- Patterns with Catagolue frequency class 47
- Natural periodic objects
- Spaceships with 24 cells
- Periodic objects with minimum population 24
- Patterns with 24 cells
- Patterns found by Hartmut Holzwart
- Patterns found in 1992
- Patterns that can be constructed with 8 gliders
- Spaceships
- Tagalongs
- Spaceships with period 4
- Orthogonal spaceships
- Spaceships with speed c/2
- Spaceships with unsimplified speed 2c/4
- Spaceships with heat 33
- Spaceships with mod 4
- Spaceships with n symmetry