Difference between revisions of "C/5 orthogonal"

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(I am very extremely thoroughly totally completely shocked that this update took so long to get through. The P11040 Spider gun is ANCIENT. This is like one of the three pages that need updating after the discovery of the spider gun. Seriously? Also shows how people care less about Entity Valkyrie 2's constructions than others. Extremely disappointing. Also updated the Guns section with [citation needed] details. Also deleted one reference. Also just trying to hit the summary length limit lmao....)
m (woah there buddy ol' pal, ol' chum bucket, i think you've got there a serious case of not assuming good faith of other editors. i'll have you know that i have over 11,000 edits on this very wiki here about john horton conway's cgol of b3s23 life, known in short as lifewiki, or "the" lifewiki if your name would happen to be david m. greene, and never in 10^10^100 + 1 years would i ever even think about deliberately choosing to omit a life enthusiast's discoveries due to my own feelings about them)
 
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==Guns==
 
==Guns==
On March 7, {{year|2019}}, [[Martin Grant]] found a 601-glider [[synthesis]] of spider, making it the first c/5 orthogonal spaceship to be synthesized.<ref name="post72705" /> On January 26, {{year|2020}}, [[Entity Valkyrie]] constructed a P11040 spider gun using an old 384-glider recipe, the first gun to fire a c/5 orthogonal spaceship and the largest gun of an elementary spaceship by far in both respect of bounding box (15426×15954) and population (263246).<ref name="post88186" />
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On March 7, {{year|2019}}, [[Martin Grant]] found a 601-glider [[synthesis]] of spider, making it the first c/5 orthogonal spaceship to be synthesized.<ref name="post72705" /> On January 26, {{year|2020}}, [[Entity Valkyrie]] constructed a p11040 spider gun using an old 384-glider recipe, the first gun to fire a c/5 orthogonal spaceship and the largest gun of an elementary spaceship by far in both respect of bounding box (15426×15954) and population (263246).<ref name="post88186" />
 
==See also==
 
==See also==
 
*[[c/5 diagonal]]
 
*[[c/5 diagonal]]
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|author = Entity Valkyrie 2
 
|author = Entity Valkyrie 2
|date  = January 26th, 2020
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|date  = January 26, 2020
 
}}</ref>
 
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Latest revision as of 12:41, 14 February 2020

c/5 orthogonal
Spider.png
Spaceship Yes
Puffer Yes
Rake Yes
Wickstretcher Yes
Gun Yes

c/5 orthogonal is an orthogonal speed that is equivalent to one fifth of the speed of light.

Spaceships

The first c/5 orthogonal spaceship to be discovered was the snail, found by Tim Coe in January 1996 using a program designed to utilize two CPUs. Since then many c/5 orthogonal spaceships have been found, most notably the spider, discovered by David Bell in April 1997, which is the smallest c/5 orthogonal spaceship known. Hartmut Holzwart found the first c/5 greyship in March 2010.

A c/5 orthogonal greyship found by Hartmut Holzwart
Download RLE: click here

All known c/5 orthogonal spaceships were period-5 until the discovery of the p15 pre-pulsar spaceship by Noam Elkies in December 1997. David Bell found two related ships, the p30 pre-pulsar spaceships in May, 1998. In March 1998 David Bell found methods of constructing high period c/5 orthogonal spaceships by perturbing gliders with the edge sparks of spiders. Paul Tooke found the first period 10 spaceship of this speed, 160P10H2V0, in November 2004, and on January 4, 2005, constructed an adjustable period rake with period 165 + 5N, which could easily be made into a spaceship by adding an extra spider to delete the outgoing gliders.

Puffers

The first c/5 orthogonal puffer to be discovered was found by Tim Coe in May, 1997. The puffer works by perturbing a reaction between a block and a glider using six spiders, so that the appropriate gliders are sent to the other side of the pattern where the process is repeated. Since then new methods of perturbing gliders have resulted in much cleaner puffers.

Rakes

In September 1997 David Bell discovered the first clean c/5 orthogonal rake. The rake had a period of 3960 and was based on the same mechanisms as the other known puffers. Many rakes of smaller periods were later formed, often by circulating more gliders in higher period rakes. On January 4, 2005 Paul Tooke constructed an adjustable forward rake of period 165+5N.

Wickstretchers

On March 12, 2013 Matthias Merzenich found a c/5 orthogonal wickstretcher for a period-12 wick.

Guns

On March 7, 2019, Martin Grant found a 601-glider synthesis of spider, making it the first c/5 orthogonal spaceship to be synthesized.[1] On January 26, 2020, Entity Valkyrie constructed a p11040 spider gun using an old 384-glider recipe, the first gun to fire a c/5 orthogonal spaceship and the largest gun of an elementary spaceship by far in both respect of bounding box (15426×15954) and population (263246).[2]

See also

References

  1. Martin Grant (March 7, 2019). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  2. Entity Valkyrie 2 (January 26, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums

External links