Champagne glass
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Champagne glass  
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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 nontrivial 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.
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References
 ↑ Dean Hickerson's "New billiard tables" oscillator collection
 ↑ "Class 2 Objects Catalog". Retrieved on April 9, 2009.
External links
 Champagne glass at Adam P. Goucher's Catagolue
 45P22.1 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
 Patterns
 Oscillators with 45 cells
 Patterns with 45 cells
 Patterns found by Dean Hickerson
 Patterns found in 1997
 Oscillators
 Periodic objects with minimum population 45
 Billiard tables
 Oscillators with period 22
 Oscillators with mod 11
 Oscillators with heat 3
 Oscillators with volatility 0.31
 Oscillators with strict volatility 0.28
 Flipping oscillators