Difference between revisions of "Bulldozer"
Jump to navigation
Jump to search
(Undo revision 142582 by Haycat2009 (talk) Reason for change? 'Arbitrarily extendable' is better, since the thing can be made arbitrarily large, but still remains finite) Tag: Undo |
(I did not realize she did anything notable in 2017) |
||
| (7 intermediate revisions by 2 users not shown) | |||
| Line 11: | Line 11: | ||
|z = c/6 | |z = c/6 | ||
|h = 107.3 | |h = 107.3 | ||
|symmetry = -e | |||
|discoverer = Paul Tooke | |discoverer = Paul Tooke | ||
|discoveryear = 2008 | |discoveryear = 2008 | ||
| Line 26: | Line 27: | ||
'''Bulldozer'''<ref name="post15547" /> (also known as '''114P6H1V0''') is an [[c/6 orthogonal]] [[spaceship]] discovered by [[Paul Tooke]] in October {{year|2008}}.<ref>{{CiteSummersPattern|name=jslife|accessdate=October 28, 2020}}</ref> It was the second c/6 orthogonal spaceship to be found that does not involve a [[dragon]] (the first one being [[274P6H1V0]]). | '''Bulldozer'''<ref name="post15547" /> (also known as '''114P6H1V0''') is an [[c/6 orthogonal]] [[spaceship]] discovered by [[Paul Tooke]] in October {{year|2008}}.<ref>{{CiteSummersPattern|name=jslife|accessdate=October 28, 2020}}</ref> 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 [[Fly-by deletion|run right over]] some small [[still life]]s and [[oscillator]]s and continue on unharmed.<ref>{{LinkGoLNews|2009/03/new_c6_extensible_spaceship.html|title=New c/6 Extensible Spaceship|author=Dave Greene|date=March 8, 2009}}</ref> 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]]<ref name="post47306" /> or even a clean [[rake]] is possible. | The spaceship features a strong central ''forward'' [[domino]] [[spark]] and a low enough speed, allowing it to [[Fly-by deletion|run right over]] some small [[still life]]s and [[oscillator]]s and continue on unharmed.<ref>{{LinkGoLNews|2009/03/new_c6_extensible_spaceship.html|title=New c/6 Extensible Spaceship|author=Dave Greene|date=March 8, 2009}}</ref> 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]]<ref name="post47306" /> or even a clean [[rake]] is possible. | ||
This spaceship shares many properties with [[139P7H1V0]]: They are both [[non-monotonic]] slow spaceships with a strong forward spark that can delete objects, they both have bilateral [[symmetry]], and they both have a [[population]] between 100 and 150. | |||
{{EmbedViewer | {{EmbedViewer | ||
| Line 42: | Line 45: | ||
}} | }} | ||
==Variants== | == 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. | 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. | ||
{{EmbedViewer | {{EmbedViewer | ||
| Line 101: | Line 104: | ||
==See also== | == See also == | ||
* [[56P6H1V0]] | * [[56P6H1V0]] | ||
* [[139P7H1V0]], a spaceship with similar bulldozing capabilities. | |||
==References== | == References == | ||
<references> | <references> | ||
<ref name="post15547">{{LinkForumThread | <ref name="post15547">{{LinkForumThread | ||
| Line 117: | Line 121: | ||
|title = Re: Spaceship Discussion Thread | |title = Re: Spaceship Discussion Thread | ||
|p = 47306 | |p = 47306 | ||
|author = | |author = Nora Brown | ||
|date = July 26, 2017 | |date = July 26, 2017 | ||
}}</ref> | }}</ref> | ||
| Line 148: | Line 152: | ||
[[Category:Non-monotonic spaceships]] | [[Category:Non-monotonic spaceships]] | ||
__NOTOC__ | __NOTOC__ | ||
Latest revision as of 16:12, 23 March 2026
| Bulldozer | |||||||||
| View animated image | |||||||||
| View static image | |||||||||
| Pattern type | Spaceship | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 114 | ||||||||
| Bounding box | 16 × 32 | ||||||||
| Direction | Orthogonal | ||||||||
| Period | 6 (mod: 6) | ||||||||
| Speed | c/6 | c/6 | ||||||||
| Heat | 107.3 | ||||||||
| Kinetic symmetry | -e | ||||||||
| Discovered by | Paul Tooke | ||||||||
| Year of discovery | 2008 | ||||||||
| |||||||||
| |||||||||
| |||||||||
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 domino 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.
This spaceship shares many properties with 139P7H1V0: They are both non-monotonic slow spaceships with a strong forward spark that can delete objects, they both have bilateral symmetry, and they both have a population between 100 and 150.
| 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.
- ↑ Nora 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
Categories:
- 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
- Spaceships with -e symmetry
- Non-monotonic spaceships