Difference between revisions of "Caterpillar"
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The '''Caterpillar''' is the first [[17c/45 orthogonal|17c/45]] [[spaceship]] that was constructed. It was created via a combination of manually-constructed parts put together by [[:Category:Patterns found by David Bell|David Bell]], [[:Category:Patterns found by Jason Summers|Jason Summers]] and [[:Category:Patterns found by Gabriel Nivasch|Gabriel Nivasch]] and a computer-aided construction coded by Nivasch. The Caterpillar's construction took place over a long period of time, but it was completed on December 31, [[:Category:Patterns found in 2004|2004]]. | The '''Caterpillar''' is the first [[17c/45 orthogonal|17c/45]] [[spaceship]] that was constructed, and is the first [[Spaceship#Engineered slaceships|engineered spaceship]], making use of the [[17c/45 reaction]]. It was created via a combination of manually-constructed parts put together by [[:Category:Patterns found by David Bell|David Bell]], [[:Category:Patterns found by Jason Summers|Jason Summers]] and [[:Category:Patterns found by Gabriel Nivasch|Gabriel Nivasch]] and a computer-aided construction coded by Nivasch. The Caterpillar's construction took place over a long period of time, but it was completed on December 31, [[:Category:Patterns found in 2004|2004]]. | ||
Caterpillar is, in terms of its minimum 11,880,063 alive [[cell]]s, by far the largest interesting pattern that has been constructed in [[Conway's Game of Life|Life]]. By comparison, the [[Spartan universal computer-constructor]] has a larger bounding box, but only half a million live cells. The image to the right is zoomed out to a scale of 32 [[cell]]s per pixel and still only shows the top 3% of it. Encoded as an [[RLE]] file, it is over 29MB in size. Despite this, it moves at the speed of 17c/45, which is the fourth fastest orthogonal speed with a known spaceship. | Caterpillar is, in terms of its minimum 11,880,063 alive [[cell]]s, by far the largest interesting pattern that has been constructed in [[Conway's Game of Life|Life]]. By comparison, the [[Spartan universal computer-constructor]] has a larger bounding box, but only half a million live cells. The image to the right is zoomed out to a scale of 32 [[cell]]s per pixel and still only shows the top 3% of it. Encoded as an [[RLE]] file, it is over 29MB in size. Despite this, it moves at the speed of 17c/45, which is the fourth fastest orthogonal speed with a known spaceship. | ||
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==See also== | ==See also== | ||
*[[ | *[[Centipede]] | ||
==External links== | ==External links== | ||
Revision as of 19:51, 20 July 2016
| Caterpillar | |||||||
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| Pattern type | Spaceship | ||||||
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| Number of cells | 11880063 | ||||||
| Bounding box | 4195 × 330721 | ||||||
| Direction | Orthogonal | ||||||
| Period | 270 | ||||||
| Mod | Unknown | ||||||
| Speed | 17c/45 | Unknown | ||||||
| Heat | Unknown | ||||||
| Discovered by | Gabriel Nivasch | ||||||
| Year of discovery | 2004 | ||||||
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The Caterpillar is the first 17c/45 spaceship that was constructed, and is the first engineered spaceship, making use of the 17c/45 reaction. It was created via a combination of manually-constructed parts put together by David Bell, Jason Summers and Gabriel Nivasch and a computer-aided construction coded by Nivasch. The Caterpillar's construction took place over a long period of time, but it was completed on December 31, 2004.
Caterpillar is, in terms of its minimum 11,880,063 alive cells, by far the largest interesting pattern that has been constructed in Life. By comparison, the Spartan universal computer-constructor has a larger bounding box, but only half a million live cells. The image to the right is zoomed out to a scale of 32 cells per pixel and still only shows the top 3% of it. Encoded as an RLE file, it is over 29MB in size. Despite this, it moves at the speed of 17c/45, which is the fourth fastest orthogonal speed with a known spaceship.
Gallery
- Caterpillar full.jpeg
The whole spaceship (512 cells/pixel)
Full view of caterpillar (click to view)
Videos
See also
External links
- "The 17c/45 Caterpillar spaceship". Gabriel Nivasch's Life page (January 2005). A "brief overview" of how the Caterpillar works (with illustrations and RLE files of parts), the pattern in RLE format, plus complete C++ & RLE sources for assembling it.
- "17c/45 "Caterpillar" spaceship". Jason Summer's Life page. A short summary of what the Caterpillar is with a few pictures, plus the pattern in RLE and .mc (macrocell) formats. Golly loads the macrocell file much more quickly than the RLE.
- The Caterpillar (glider 1) at David Eppstein's Glider Database
- Patterns
- Spaceships with between 10,000,000 and 99,999,999 cells
- Periodic objects with minimum population between 10,000,000 and 99,999,999
- Patterns with between 10,000,000 and 99,999,999 cells
- Patterns found by Gabriel Nivasch
- Patterns found in 2004
- Outer-totalistically endemic patterns
- Spaceships
- Spaceships with period 270
- Orthogonal spaceships
- Spaceships with speed 17c/45
- Patterns found by David Bell
- Patterns found by Jason Summers
- Non-monotonic spaceships
- Engineered spaceships