Pond

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Pond
Pond image
Pattern type Strict still life
Number of cells 8
Bounding box 4×4
Discovered by JHC group
Year of discovery 1970

Pond is an 8-cell still life discovered by the JHC group in 1970.[1] It is the smallest lake, followed by the 24-cell lake 2.

It can be seen as a photonegative block.

Commonness

The pond is the sixth most common still life in Achim Flammenkamp's census, being slightly less common than tub and more common than ship.[2] It is also the nineth most common object on Adam P. Goucher's Catagolue.[3]

Prepond

The Prepond.

The prepond is a common predecessor of the pond. It is important because it makes about 54% of ponds. The prepond turns into a pond in 32 Life-like rules, from B3/S23 to B378/S23678, but it dies out in HighLife. Consequently, the pond occurs more than twice as commonly in Game of Life than in HighLife.

See also

References

  1. Dean Hickerson's oscillator stamp collection. Retrieved on June 18, 2009.
  2. Achim Flammenkamp (September 7, 2004). "Most seen natural occurring ash objects in Game of Life". Retrieved on January 15, 2009.
  3. Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.

External links

  • Pond at Eric Weisstein's Treasure Trove of Life
  • Pond at the Life Lexicon