|View animated image|
|View static image|
|Number of cells||10|
|Rotor type||Pole 4|
|Discovered by||MIT group|
|Year of discovery||1970|
The quadpole (or tetrapole) is the barberpole of length 4.
The quadpole is the eighth most common oscillator in Achim Flammenkamp's census, being less common than the bipole but more common than the great on-off. It is the eighth most common oscillator on Adam P. Goucher's Catagolue. Despite behaving the same in Life as they do in HighLife, they are only about 2% as common in HighLife because the ship is not stable, preventing the reaction below from occurring.
|Quadpole forming when a century predecessor collides with a ship|
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RLE: here Plaintext: here
All strict still lifes with a population of 20 or fewer cells, as well as all oscillators and spaceships with 16 or fewer cells, are known to be glider-constructible. A glider synthesis of this object can be found in the infobox to the right.
- Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
- Heinrich Koenig (July 3, 2010). Re: Methuselah from Gliders (discussion thread) at the ConwayLife.com forums
- 10P2.1 at Heinrich Koenig's Game of Life Object Catalogs