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|Oscillator type||Muttering moat|
|Number of cells||6|
|Discovered by||Simon Norton|
|Year of discovery||1970|
Clock can also serve as a weak sparker - although the edge cells cannot birth new cells without being destroyed, they can be used to suppress cell birth by overpopulation, as seen in p124 lumps of muck hassler.
It serves as the logo of WinLifeSearch.
The clock is a part of a family of p2 oscillators that can be seen as stabilisations for the zebra stripes/chicken wire agar. Such extensions may lose symmetry. The next most simple oscillator in the family is cha cha.
Very long clock
- Main article: List of common oscillators
Clock is the sixth most common oscillator in Achim Flammenkamp's census, being somewhat less frequent than the pentadecathlon, but much rarer than the blinker, toad, beacon or pulsar. It is by far the rarest 6-bit object, being about 45 times rarer than the snake. It is also the sixty-second most common object on Adam P. Goucher's Catagolue.
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.
In other rules
In outer-totalistic rules, clock can follow at least three different p2 cycles depending on the rule, which all have mod 1.
- In rules such as B4/S1 the inner two cells oscillate similarly to a duoplet in Seeds.
- In rules such as B3/S3, the outer cells oscillate (this being the sequence seen in Life).
- In rules such as B34/S, both of these evolutions take place simultaneously, causing it to evolve into an inverted version of itself and therefore making it a phoenix.
This gives three different p2 sequences:
|B3/S3 to B35678/S02345678||B34/S to B345678/S0245678||B4/S1 to B45678/S01245678|