Diuresis

Diuresis
x = 29, y = 25, rule = B3/S23 5b2o16b2o$6bo16bo$6bobo12bobo$7b2o12b2o2$4b2o18b2o$4bobo10b2o4bobo$5bo 10bobo5bo$2bo13b2o9bo$2b6o8bo5b6o$7bo14bo$4b2o18b2o$4bo20bo$5bo18bo$2b 3o2bo14bo2b3o$2bo2b3o8bo5b3o3bo$3bo12b2o7b3o$4b2o10bobo5bo$6bo10b2o4bo 2b2o$4b2o18b2obo$bo2bo20bo$obobo2b2o12b2o2bo$bo2bobobo12bobob2o$4bobo 16bo2bo$5b2o16b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ GPS 10 ZOOM 10 LOOP 90 ]]
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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
Rules Outer-totalistic rules B3/S23 – B38/S238 Important rules Conway Life # of rules 22 = 4 Isotropic rules B3/S23 – B35e8/S234e5e6ei8
Pattern files Plaintext diuresis.cells RLE diuresis.rle
Identifiers apgcode xp90_8k80u178cy8c871s6zwg85ligx6asy4gil9abgzw11da0hyah0ad11zw31pl91xca7y419lp13zy1gs26y862sg

Diuresis is a period-90 oscillator consisting of two bookends hassled by complicated eaters. The original oscillator was found by David Eppstein on October 11, 1998, 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

The original form of diuresis Download RLE: click here

External links

• Diuresis at the Life Lexicon

• Diuresis at Adam P. Goucher's Catagolue