Difference between revisions of "Champagne glass"

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(New page: {{Oscillator|name=Champagne glass|pname=champagneglass|c=45|p=22|bx=15|by=12|h=3.1|animated=yes|life105=true|life106=true|plaintext=true|rle=true}} '''Champagne glass''' (or '''45P22.1''')...)
 
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{{Oscillator|name=Champagne glass|pname=champagneglass|c=45|p=22|bx=15|by=12|h=3.1|animated=yes|life105=true|life106=true|plaintext=true|rle=true}}
{{Oscillator
'''Champagne glass''' (or '''45P22.1''') is a [[period]] [[:Category:Oscillators with period 22|22]] [[oscillator]]. In terms of its 45 [[cell]]s, it is the smallest known non-trivial period 22 oscillator, although the trivial [[beacon on 38P11.1]] contains only [[:Category:Patterns with 40 cells|40]] cells.<ref>{{cite web|url=http://pentadecathlon.com/objects/class2/class2.php?part=2 |title=Class 2 Objects Catalog |accessdate=April 9, 2009}}</ref> It contains a [[bookend]] acting as an [[induction coil]].
|name             = Champagne glass
|pname           = champagneglass
|f1              = Billiard table
|c               = 45
|bx               = 15
|by               = 12
|p                = 22
|m                = 11
|h               = 3.1
|v                = 0.31
|sv              = 0.28
|discoverer      = Dean Hickerson
|discoveryear    = 1997
|rulemin          = B3/S23
|rulemax          = B378/S23678
|rulespecial      = [[Conway's Game of Life|Conway Life]]
|isorulemin      = B3-ce/S2-n3-cj
|isorulemax      = B2in34ceqr5cn6ace78/S234cejktwy5-e678
|plaintext       = true
|rle             = true
|animated        = yes
|apgcode          = xp22_o8bp688gzx1iv0v0e93z32qjc221
|pentadecathlonid = 45P22.1
|viewerconfig    = #C [[ GPS 5 ZOOM 16 LOOP 22 ]]
}}
'''Champagne glass''' (or '''45P22.1''') is a {{period|22}} [[billiard table configuration|billiard table]] [[oscillator]] discovered by [[Dean Hickerson]] using his [[drifter]] search program on April 19, {{year|1997}},<ref>Dean Hickerson's "[https://conwaylife.com/ref/DRH/nbt.html New billiard tables]" oscillator collection</ref> being found only two days after [[168P22.1]]. In terms of its {{cells|45}} [[cell]]s, it is the second smallest known [[non-trivial]] period 22 oscillator, behind [[Jason's p22]] with only {{cells|36}} cells.<ref>{{cite web|url=http://pentadecathlon.com/objects/class2/class2.php?part=2 |title=Class 2 Objects Catalog |accessdate=April 9, 2009}}</ref> 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.
 
{|style="margin:auto;width:300px;"
|{{EmbedViewer
|pname        = 58cellchampagneglass
|position    = center
|viewerconfig = #C [[ THUMBSIZE 2 ZOOM 14 ]]
|caption      = 58-cell variant of champagne glass
|style        = width:300px;
}}
|}


==References==
==References==
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==External links==
==External links==
*[http://www.ericweisstein.com/encyclopedias/life/ChampagneGlass.html Champagne Glass] as Eric Weisstein's Treasure Trove of Life
* {{LinkCatagolue|xp22_o8bp688gzx1iv0v0e93z32qjc221}}
* {{LinkPentadecathlonObject|45P22.1}}
* {{LinkWikipedia|Champagne_glass}} (name origin)
 
{{symmetry|osc=flip}}

Latest revision as of 00:06, 12 August 2023

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 using his drifter search program 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 Jason's p22 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.

x = 15, y = 17, rule = B3/S23 5b2o$6bo$4bo$4b5o$8bo$4b2o3b2o$2obobo5bob2o$bobo7bobo$o2b2o5b2o2bo$b2o 6bo2b2o$3b3o4b2o$3bo4bo2bo$4b7o2$6b3o$6bo2bo$8b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 14 ]]
58-cell variant of champagne glass
(click above to open LifeViewer)
RLE: here Plaintext: here

References

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

External links