Eater plug (or cavity) is an extensible period 2 oscillator that was found in February 1973 by Robert Wainwright. Its name derives from its resemblance to two diagonally-touching eater 1s.
It has an identical rotor to the great on-off, which is interestingly over 1000 times more common than it despite its size.
Eater plug is about the fifty-fifth most common naturally-occurring oscillator in Achim Flammenkamp's census.
- ↑ Eric Weisstein. "Cavity". Eric Weisstein's Treasure Trove of Life. Retrieved on April 26, 2009.
- ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- 14P2.18 at Heinrich Koenig's Game of Life Object Catalogs