Pulsar
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Pulsar  
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Pattern type  Oscillator  

Number of cells  48  
Bounding box  15×15  
Period  3  
Mod  3  
Heat  42.7  
Volatility  0.73  
Strict volatility  0.73  
Rotor type  Pulsar  
Discovered by  John Conway  
Year of discovery  1970  
 
 
 

Pulsar is a large but surprisingly common period 3 oscillator. Itwas found very early on by John Conway.
The rotor of a pulsar consists of four mutually stabilizing quadrants; alternate arrangements exist for any odd multiple of 4 (for the version with 12 copies, see quasar). A closely related oscillator — the pulsar quadrant — includes just the external "horns" of the rotor and can be stabilized on its own.
Commonness
Despite its size, pulsar is the fourth most common oscillator (and by far the most common of period greater than 2) in Achim Flammenkamp's census; the only oscillators more common are blinker, toad, and beacon.^{[1]} The pulsar is also the twentyfirst most common object on Adam P. Goucher's Catagolue.^{[2]}
See also
References
 ↑ Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
 ↑ Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
External links
 Pulsar at the Life Lexicon
Categories:
 Patterns that can be constructed with 3 gliders
 Patterns
 Oscillators
 Patterns with 48 cells
 Oscillators with 48 cells
 Oscillators with period 3
 Oscillators with mod 3
 Oscillators with heat 42
 Oscillators with volatility 0.73
 Oscillators with strict volatility 0.73
 Oscillators with rotor Pulsar
 Patterns found by John Conway
 Patterns found in 1970
 Patterns with complete square symmetry