Bulldozer
| Bulldozer | |||||||||
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| Pattern type | Spaceship | ||||||||
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| Number of cells | 114 | ||||||||
| Bounding box | 16 × 32 | ||||||||
| Direction | Orthogonal | ||||||||
| Period | 6 (mod: 6) | ||||||||
| Speed | c/6 | c/6 | ||||||||
| Heat | 107.3 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Discovered by | Paul Tooke | ||||||||
| Year of discovery | 2008 | ||||||||
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Bulldozer[1] (also known as 114P6H1V0) is an c/6 orthogonal spaceship discovered by Paul Tooke in October 2008.[2] It was the second c/6 orthogonal spaceship to be found that does not involve a dragon (the first one being 274P6H1V0).
The spaceship features a strong central forward spark and a low enough speed, allowing it to run right over some small still lifes and oscillators and continue on unharmed.[3] It emits back sparks as well, which can perturb a glider in various ways when assisted by other c/6 spaceships. With perpetually recycled gliders, a dirty c/6 puffer[4] or even a clean rake is possible.
| The bulldozer running over a block, boat, blinker, toad and phoenix 1 (click above to open LifeViewer) |
Variants
As shown below, the front part of the spaceship was found as a self-supporting wick, where the repeatable component can stabilise itself in any of three unique ways, making the spaceship arbitrarily extendable.
| Image: here (click above to open LifeViewer) Catagolue: here |
In May 2009, Hartmut Holzwart found the following pushalong for this spaceship.[5]
| Pushalong for the bulldozer (click above to open LifeViewer) RLE: here Plaintext: here |
In 2013 and 2014, Josh Ball found three more pushalongs.[6][7]
| Other pushalongs for the bulldozer (click above to open LifeViewer) RLE: here Plaintext: here |
A small tagalong was discovered by Carson Cheng on September 4, 2023.[8]
| Tagalong for the bulldozer (click above to open LifeViewer) RLE: here Plaintext: here |
The tagalong is only supported by the domino sparks at the back of the spaceship, which means it can also be attached to the back of a pair of bulldozers.
| Tagalong supported by two bulldozers instead of one (click above to open LifeViewer) RLE: here Plaintext: here |
See also
References
- ↑ Bjorn (January 2, 2015). Re: Project Alias (discussion thread) at the ConwayLife.com forums
- ↑ Jason Summers' jslife pattern collection. Retrieved on October 28, 2020.
- ↑ New c/6 Extensible Spaceship at Game of Life News. Posted by Dave Greene on March 8, 2009.
- ↑ Nico Brown (July 26, 2017). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
- ↑ New c/6 Spaceships at Game of Life News. Posted by Heinrich Koenig on May 31, 2009.
- ↑ Josh Ball (August 18, 2013). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums
- ↑ Josh Ball (December 17, 2014). Re: List of updates since 23. August 2013 for GoL status page (discussion thread) at the ConwayLife.com forums
- ↑ Carson Cheng (September 4, 2023). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
External links
- 114P6H1V0.1 at Heinrich Koenig's Game of Life Object Catalogs
- Bulldozer at Adam P. Goucher's Catagolue
- Patterns
- Spaceships with between 110 and 119 cells
- Periodic objects with minimum population between 110 and 119
- Patterns with between 110 and 119 cells
- Patterns found by Paul Tooke
- Patterns found in 2008
- Spaceships
- Spaceships with period 6
- Orthogonal spaceships
- Spaceships with speed c/6
- Spaceships with unsimplified speed c/6
- Spaceships with heat between 100 and 109
- Spaceships with mod 6
- Non-monotonic spaceships
- Patterns with bilateral orthogonal symmetry
- Unnamed periodic objects