c/5 diagonal

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c/5 diagonal
58p5h1v1.png
Spaceship Yes
Puffer Yes
Rake Yes
Wickstretcher Yes
Gun Yes

c/5 diagonal is a diagonal speed that is equivalent to one fifth of the speed of light.

Spaceships

The first c/5 diagonal spaceship to be discovered was 295P5H1V1 and was found by Jason Summers on November 22, 2000.[1] No other spaceships of this speed were discovered until January 8, 2005, when Jason Summers found the much smaller 86P5H1V1.[2] In July 2006 Nicolay Beluchenko discovered three new c/5 diagonal spaceships, including the asymmetric 67P5H1V1.[3] The smallest known c/5 diagonal spaceship, 58P5H1V1, was discovered by Matthias Merzenich on September 5, 2010.[4]

After a gap of several years, on March 26-27, 2020, AforAmpere found new c/5 diagonal ships with a different shape from previous discoveries.[5]

The first glider synthesis for a c/5 diagonal spaceship (58P5H1V1) was found by Goldtiger997 and Tanner Jacobi in April 2020.[6][7]

Puffers

x = 85, y = 71, rule = b3/s23 82bo2b$81b2o2b$80bo4b$78b3ob2ob$77b2obo3bo$76bob3o4b$75b2obobob2ob$76b ob2obo3b$76bo8b2$53bo21bo5bo3b$52b2o21bo4bo4b$51bo22bo2bo7b$49b3ob2o 18bo11b$48b2obo3bo11bo3b2o12b$47bob3o14b4o15b$46b2obobob2o10bo7bo11b$ 47bob2obo11b5o16b$47bo16bobobo16b$30b2o31b5o4bo12b$30b2o14bo5bo9bo5bo 2bo13b$29bo2bo13bo4bo9b2obo2bo17b$26b2obo2bo12bo2bo15bo2bo17b$32bo11bo 20bo19b$24b2o3bo2bo5bo3b2o41b$24b2o5bo5b4o44b$25bob5o4bo7bo40b$26bo8b 5o45b$35bobobo45b$34b5o4bo41b$23b3o7bo5bo2bo42b$23bo8b2obo2bo46b$21b2o 12bo2bo46b$15b2o4bo14bo48b$15b3o3bo63b$13bo4bo66b$13bo3bo67b$17bo67b$ 12b2obobo67b$10b2o5bo67b$10b2o4b2o67b$12b4o69b2$25b2o58b$24b2o59b$26bo 58b3$20b2o63b$20b2o63b$19bo2bo62b$16b2obo2bo62b$22bo62b$14b2o3bo2bo62b $14b2o5bo63b$15bob5o63b$16bo68b3$13b3o69b$13bo71b$11b2o72b$5b2o4bo73b$ 5b3o3bo73b$3bo4bo76b$3bo3bo77b$7bo77b$2b2obobo77b$2o5bo77b$2o4b2o77b$ 2b4o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 4 WIDTH 500 HEIGHT 600 X 20 Y 20 THEME Book TRACK -1/5 -1/5 GPS 40 AUTOSTART ]]
The first c/5 diagonal puffer to be discovered (click above to open LifeViewer)
RLE: here Plaintext: here
x = 63, y = 63, rule = B3/S23 55bo5bo$54bo7bo$57b4obo$53bo2bo3b2o$53bo2bo2b3o$53bo4bo$54bob3o$54b2ob 2o$50b3o4b2o$50b3o$48b2o$48b2o$48b2o$43b3o$41bo4b2o$40bo6bo$43b2obo$ 42bo3b3o$42bo2b4o$42bobo$42b3o$40bo2b2o$41b2o12$49bo5bo$48bo7bo$51b4ob o$47bo2bo3b2o$47bo2bo2b3o$47bo4bo$15bo5bo26bob3o$14bo7bo25b2ob2o$17b4o bo21b3o4b2o$13bo2bo3b2o9bo12b3o$13bo2bo2b3o7bobo10b2o$13bo4bo11b2o10b 2o$14bob3o23b2o$14b2ob2o18b3o$10b3o4b2o16bo4b2o$10b3o21bo6bo$8b2o27b2o bo$8b2o26bo3b3o$8b2o26bo2b4o$3b3o30bobo$bo4b2o28b3o$o6bo26bo2b2o$3b2ob o28b2o$2bo3b3o$2bo2b4o$2bobo$2b3o$o2b2o$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART THEME Book THUMBSIZE 2 ZOOM 4 WIDTH 500 HEIGHT 600 X -20 Y -20 GPS 40 TRACK 1/5 1/5 ]]
Three-ship puffer by Peter Naszvadi (click above to open LifeViewer)
RLE: here Plaintext: here

The first c/5 diagonal puffer was built by Matthias Merzenich on September 5, 2010.[4] It consists of four copies of 58P5H1V1 continually hassling a glider, leaving debris behind at a period of 1450.

A period-1540 glide-symmetric three-ship puffer was discovered by Peter Naszvadi in March 2020.[8]

Rakes

The first clean c/5 diagonal rake was constructed by Matthias Merzenich on September 7, 2010.[4] The rake has a period of 1585 and works by circulating two gliders. Alternative rake designs were constructed by Merzenich and Adam P. Goucher. The lowest period so far achieved for a c/5 diagonal rake is 85.[9]

Wickstretchers

The first c/5 diagonal wickstretcher was found by Matthias Merzenich on January 26, 2011.[4] It consists of a tagalong pulled by two copies of 58P5H1V1 that stretches two tubs.

Guns

On May 22, 2020, Entity Valkyrie constructed a period-2760 58P5H1V1 gun.[10]

See also

References

  1. Jason Summers' jslife pattern collection.
  2. New Diagonal c/5 Spaceship at Game of Life News. Posted by Heinrich Koenig on January 09, 2005.
  3. New c/5 Diagonal Spaceships at Game of Life News. Posted by Heinrich Koenig on July 15, 2006.
  4. 4.0 4.1 4.2 4.3 New c/5 diagonal technology at Game of Life News. Posted by Adam P. Goucher on January 26, 2011.
  5. AforAmpere (March 26, 2020). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  6. Tanner Jacobi (April 2, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  7. Goldtiger997 (April 3, 2020). Re: Small Spaceship Syntheses (discussion thread) at the ConwayLife.com forums
  8. Peter Naszvadi (March 27, 2020). Re: Thread For Your Useless Discoveries (discussion thread) at the ConwayLife.com forums
  9. Matthias Merzenich (September 9, 2015). Re: Switchable gun? (discussion thread) at the ConwayLife.com forums
  10. Entity Valkyrie (May 22, 2020). Re: Construction practice (discussion thread) at the ConwayLife.com forums

External links