Diuresis
From LifeWiki
Diuresis  
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Pattern type  Oscillator  

Oscillator type  Shuttle  
Number of cells  121  
Bounding box  29×25  
Period  90  
Mod  45  
Heat  33.2  
Volatility  0.74  
Strict volatility  0.74  
Discovered by  David Eppstein  
Year of discovery  1998  
 
 

Diuresis is a period 90 oscillator consisting of two bookends hassled by complicated eaters. The original oscillator was found by David Eppstein, and was hassled by pentadecathlons. With a minimum population of 66 cells, this is still the smallest known form of the oscillator in terms of cell count. Later that same day, Dean Hickerson replaced the pentadecathlons with the still life arrangement. The form to the right shows two still life arrangements, one with the minimal population (left) and one with the minimal bounding box (right).
The name is due to Bill Gosper, who compared the bookends to kidneys.
Image gallery
External links
 Diuresis at the Life Lexicon
Categories:
 Patterns
 Oscillators with 121 cells
 Patterns with 121 cells
 Patterns found by David Eppstein
 Patterns found in 1998
 Oscillators
 Periodic objects with minimum population 121
 Shuttles
 Oscillators with period 90
 Oscillators with mod 45
 Oscillators with heat 33
 Oscillators with volatility 0.74
 Oscillators with strict volatility 0.74
 Patterns with bilateral orthogonal symmetry
 Flipping oscillators