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'''With the grain''' is a term used for [[negative spaceship]]s travelling in [[zebra stripes]] [[agar]], parallel to the stripes, and also for [[with-the-grain grey ship]]s.
'''With the grain''' is a term used for [[negative spaceship]]s travelling in [[zebra stripes]] [[agar]], parallel to the stripes, and also for [[with-the-grain grey ship]]s.


Below are three small examples of "negative spaceships" found by [[Gabriel Nivasch]] in July {{year|1999}}, traveling with the grain through zebra stripes agar.
Below are three small examples of negative spaceships found by [[Gabriel Nivasch]] in July {{year|1999}}, traveling with the grain through zebra stripes agar.


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It has been proven that signals traveling non-destructively with the grain through zebra stripes cannot travel at less than the [[speed of light]].
A finite signal that travels non-destructively with the grain through zebra stripes must travel at [[speed of light]].<ref name="cgolmc_100" />


==Also see==
==See also==
* [[Against the grain]]
* [[Against the grain]]
==References==
<references>
<ref name="cgolmc_100">[[Conway's Game of Life: Mathematics and Construction]], 4.5.1, theorem 4.2.</ref>
</references>


==External links==
==External links==
{{LinkLexicon|lex_w.htm#withthegrain}}
* {{LinkLexicon|lex_w.htm#withthegrain}}

Revision as of 00:30, 14 July 2022

With the grain is a term used for negative spaceships travelling in zebra stripes agar, parallel to the stripes, and also for with-the-grain grey ships.

Below are three small examples of negative spaceships found by Gabriel Nivasch in July 1999, traveling with the grain through zebra stripes agar.

x = 52, y = 51, rule = B3/S23:T52,52 52o2$52o2$52o$47bo$40ob4o4b3o$41b2o5bo$38o5b9o$44bo$36o9b2o2b3o$37bobo 5b2obo$36o3bo5b3ob3o$44bo$38o5b9o$41b2o5bo$40ob4o4b3o$47bo$52o2$52o2$ 25o2b3o2b3o2b3o2b10o$26b2o3b2o3b2o3b2o2bo$23o3bo4bo4bo4bo5b5o$26b2o3b 2o3b2o3b2o3bo$25o2b3o2b3o2b3o2b10o2$52o2$52o2$52o2$23o2b3o2b3o2b3o2b3o 2b7o$24b2o3b2o3b2o3b2o3b2o$23o3b2o3b2o3b2o3b2o3b6o$47bo$21o27b4o$48bo$ 21o27b4o$47bo$23o3b2o3b2o3b2o3b2o3b6o$24b2o3b2o3b2o3b2o3b2o$23o2b3o2b 3o2b3o2b3o2b7o2$52o2$52o2$52o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 2 THEME 6 HEIGHT 480 GPS 6 ZOOM 11 AUTOSTART ]]
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RLE: here Plaintext: here

A finite signal that travels non-destructively with the grain through zebra stripes must travel at speed of light.[1]

See also

References