c/7 orthogonal

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c/7 orthogonal
Loafer.png
Spaceship Yes
Puffer Yes
Rake Yes
Wickstretcher No
Gun Yes

c/7 orthogonal is an orthogonal speed that is equivalent to one seventh of the speed of light.

Spaceships

On February 17, 2013 Josh Ball discovered the first c/7 orthogonal spaceship, the loafer.

Using caterloopillar technology, Michael Simkin constructed a c/7 orthogonal ship on April 16, 2016.[1]

On February 4, 2017, Matthias Merzenich discovered 339P7H1V0, a large p7 width-19 bilaterally-symmetric c/7 orthogonal spaceship. These ships can be chained by nontrivial spark interactions to produce an infinite number of distinct c/7 orthogonal spaceships.[2]

On December 5, 2022, Frank Everdij discovered taco, another bilaterally symmetric spaceship, using ikpx2. Its front end contains two copies of the loafer's front end, while its back end produces two one-bit tail sparks.[3]

Guns

Loafer can be synthesized from 8 gliders, allowing the construction of guns.[4]

See also

References

  1. Michael Simkin (April 16, 2016). Re: Caterloopillar WIP (all speeds < c/4) (discussion thread) at the ConwayLife.com forums
  2. Matthias Merzenich (July 26, 2019). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  3. Frank Everdij (December 5, 2022). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  4. Shannon Omick (February 18, 2013). Re: c/7 orthogonal spaceships (discussion thread) at the ConwayLife.com forums

External links