Period-24 glider gun
Revision as of 03:43, 18 March 2016 by FractalFusion (talk | contribs)
True period 24 gun | |||||
View static image | |||||
Pattern type | Gun | ||||
---|---|---|---|---|---|
Number of cells | 335 | ||||
Bounding box | 43 × 32 | ||||
Period | 24 | ||||
Barrels | Unknown | ||||
Discovered by | Noam Elkies | ||||
Year of discovery | 1997 | ||||
|
True period 24 gun is a true period 24 gun discovered by Noam D. Elkies in 1997.[1] It uses four large period 4 oscillators (two of them variants of fountain, the other two adjoined by common casing) to hassle two T-tetrominos, which react together to produce gliders. The form on the right is a reduced variant found by Karel Suhajda.[2]
No more than five days after the initial discovery, Elkies found a method to double the period of the gun, resulting in the first known period 48 glider gun.[1] The period 48 gun is shown below using the reduced variant form.[2]
Image gallery
See also
References
- ↑ 1.0 1.1 Paul Callahan (February 11, 2001). "p24 "true" gun (mail digest)". Retrieved on March 17, 2016.
- ↑ 2.0 2.1 Jason Summers (December 30, 2012). "Pattern Collections, jslife/osc". Retrieved on March 17, 2016.