Difference between revisions of "Crab"
Jump to navigation
Jump to search
m (added alternate name) |
|||
| Line 2: | Line 2: | ||
'''Crab''' (or '''quarter'''<ref>{{CiteLexicon|lex_q.htm#quarter|name=quarter}}</ref>) is a diagonal [[:Category:Spaceships with speed c/4|c/4]] [[spaceship]] that was found by [[Jason Summers]] in September [[:Category:Patterns found in 2000|2000]]. It is the smallest known diagonal spaceship other than the [[glider]] and it consists of two gliders pulling a [[tagalong]]. | '''Crab''' (or '''quarter'''<ref>{{CiteLexicon|lex_q.htm#quarter|name=quarter}}</ref>) is a diagonal [[:Category:Spaceships with speed c/4|c/4]] [[spaceship]] that was found by [[Jason Summers]] in September [[:Category:Patterns found in 2000|2000]]. It is the smallest known diagonal spaceship other than the [[glider]] and it consists of two gliders pulling a [[tagalong]]. | ||
It was noticed by [[Nicolay Beluchenko]] in August [[:Category:Patterns found in 2005|2005]] that it can be converted into a small [[tubstretcher]], as shown below.<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2005/08/new_c4_diagonal_tubstretcher_1.html|title=New c/4 Diagonal Tubstretcher|publisher=Game of Life News|author=H. Koenig|accessdate=May 9, 2009|date=August 5, 2005}}</ref> This tubstretcher is the basis for the [[one per generation]] pattern. | It was noticed by [[Nicolay Beluchenko]] in August [[:Category:Patterns found in 2005|2005]] that it can be converted into a small [[tubstretcher]], as shown below.<ref>{{cite web|url=http://pentadecathlon.com/lifeNews/2005/08/new_c4_diagonal_tubstretcher_1.html|title=New c/4 Diagonal Tubstretcher|publisher=Game of Life News|author=H. Koenig|accessdate=May 9, 2009|date=August 5, 2005}}</ref> This tubstretcher is the basis for the [[one per generation]] pattern. | ||
Due to the near symmetry and by simple inspection, the spaceship can easily easily be made to stretch two tub wicks simultaneously. Both cases are instances of a domino dragging a tub or chain of tubs. | |||
==Image gallery== | ==Image gallery== | ||
Revision as of 02:46, 2 October 2009
| Crab | |||||||
| View animated image | |||||||
| View static image | |||||||
| Pattern type | Spaceship | ||||||
|---|---|---|---|---|---|---|---|
| Number of cells | 25 | ||||||
| Bounding box | 13 × 12 | ||||||
| Direction | Diagonal | ||||||
| Period | 4 | ||||||
| Mod | Unknown | ||||||
| Speed | c/4 | Unknown | ||||||
| Heat | 22.0 | ||||||
| Discovered by | Jason Summers | ||||||
| Year of discovery | 2000 | ||||||
| |||||||
Crab (or quarter[1]) is a diagonal c/4 spaceship that was found by Jason Summers in September 2000. It is the smallest known diagonal spaceship other than the glider and it consists of two gliders pulling a tagalong.
It was noticed by Nicolay Beluchenko in August 2005 that it can be converted into a small tubstretcher, as shown below.[2] This tubstretcher is the basis for the one per generation pattern.
Due to the near symmetry and by simple inspection, the spaceship can easily easily be made to stretch two tub wicks simultaneously. Both cases are instances of a domino dragging a tub or chain of tubs.
Image gallery
See also
References
- ↑ "quarter". The Life Lexicon. Stephen Silver.
- ↑ H. Koenig (August 5, 2005). "New c/4 Diagonal Tubstretcher". Game of Life News. Retrieved on May 9, 2009.