Champagne glass

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Champagne glass
x = 15, y = 12, rule = B3/S23 3b2o5b2o$3bo7bo$2obo7bob2o$o2b2o5b2o2bo$b2o6bo2b2o$3b3o4b2o$3bo4bo2bo$ 4b7o2$6b3o$6bo2bo$8b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 5 ZOOM 16 LOOP 22 ]]
Pattern type Oscillator
Oscillator type Billiard table
Number of cells 45
Bounding box 15×12
Period 22
Mod 11
Heat 3.1
Volatility 0.31
Strict volatility 0.28
Discovered by Dean Hickerson
Year of discovery 1997

Champagne glass (or 45P22.1) is a period 22 billiard table oscillator discovered by Dean Hickerson on April 19, 1997,[1] being found only two days after 168P22.1. In terms of its 45 cells, it is the second smallest known non-trivial period 22 oscillator, behind 36P22 with only 36 cells.[2] It contains a bookend acting as an induction coil.

Whereas its rotor reflects itself after half a period, saving two live cells by using a bookend rather than a house as an induction coil breaks the overall symmetry of the figure.

Image gallery

A 58-cell variant of champagne glass
RLE: here

References

  1. Dean Hickerson's "New billiard tables" oscillator collection
  2. "Class 2 Objects Catalog". Retrieved on April 9, 2009.

External links

  • 45P22.1 at Heinrich Koenig's Game of Life Object Catalogs