Difference between revisions of "P72 quasi-shuttle"

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|discoverer      = Jason Summers
|discoverer      = Jason Summers
|discoveryear    = 2005
|discoveryear    = 2005
|rulemin          = B3/S23
|rulemax          = B3/S23
|rulespecial      = [[Conway's Game of Life|Conway Life]]
|isorulemin      = B3/S23
|isorulemax      = B3/S234c5ek6i7e
|synthesis        = 26
|plaintext        = true
|rle              = true
|rle              = true
|viewerconfig    = #C [[ THUMBSIZE 2 Z 12 GPS 5 LOOP 72 ]]
|viewerconfig    = #C [[ THUMBSIZE 2 Z 12 GPS 5 LOOP 72 ]]
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}}
}}


'''P72 quasi-shuttle''' is a [[period]] [[:Category:Oscillators with period 72|72]] [[oscillator]] (a [[twin bee shuttle]] variant) with found by [[Jason Summers]] in August [[:Category:Patterns found in 2005|2005]]. It consists of two [[B-heptomino|B-heptominoes]] being [[hassle|hassled]] by two [[figure eight|figure eights]] and two [[unix|unices]]. In about 20 generations the [[B-heptomino]] is flipped into a [[century]], which is then flipped back into a [[B-heptomino]]. Although this looks at first sight like a [[shuttle]], it isn't really, because each side of the oscillator uses a different hassling reaction.
'''P72 quasi-shuttle''' is a {{period|72}} [[oscillator]] (a [[twin bees shuttle]] variant) with found by [[Jason Summers]] in August {{year|2005}}. It consists of two [[B-heptomino]]es being [[hassle]]d by two [[figure eight]]s and two [[unix|unices]]. In 18 generations the B-heptominoes are flipped into a [[century|centuries]] and a pair of [[block]]s by unices, which then reacts with the blocks and figure eights to be flipped back into B-heptominoes in 61 generations, but with extra blocks. The extra blocks move the B-heptominoes forward without leaving extra centuries. Although this looks at first sight like a [[shuttle]], it isn't really, because each side of the oscillator uses a different hassling reaction. Like a regular twin bees shuttle, it can reflect gliders.


==External links==
==External links==
{{LinkLexicon|lex_p.htm#p72quasishuttle}}
{{LinkLexicon|lex_p.htm#p72quasishuttle|name=p72 quasi-shuttle}}
{{LinkCatagolue|xp72_gk2gb3y8ggggy1oomewccz11yc168972y0cczoo0gyaomhpe4xgjjz0240dcyh1167w33}}
{{LinkCatagolue|xp72_gk2gb3y8ggggy1oomewccz11yc168972y0cczoo0gyaomhpe4xgjjz0240dcyh1167w33|patternname=p72 quasi-shuttle}}
{{LinkPentadecathlonObject|84P72.1}}
{{LinkPentadecathlonObject|84P72.1}}


{{Symmetry|orthogonal2}}
{{Symmetry|orthogonal2}}
{{DISPLAYTITLE:p72 quasi-shuttle}}
{{DISPLAYTITLE:p72 quasi-shuttle}}

Revision as of 20:20, 28 December 2019

p72 quasi-shuttle
x = 37, y = 23, rule = B3/S23 30bo$29b2o$28bob2o$b4o22b3o2bo$o4bo23bobobo$o3bobo23bobobo$bo3bobo6b2o 15bo2b3o$7bo5bobo16b2obo$7bo5bo19b2o$4bo2bo5b3o17bo$5b2o2$5b2o$4bo2bo 5b3o17bo$7bo5bo19b2o$7bo5bobo16b2obo$bo3bobo6b2o15bo2b3o$o3bobo23bobob o$o4bo23bobobo$b4o22b3o2bo$28bob2o$29b2o$30bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 Z 12 GPS 5 LOOP 72 ]]
Pattern type Oscillator
Number of cells 84
Bounding box 37 × 23
Period 72
Mod 72
Heat 80.6
Volatility 0.96
Strict volatility 0.59
Discovered by Jason Summers
Year of discovery 2005

P72 quasi-shuttle is a period-72 oscillator (a twin bees shuttle variant) with found by Jason Summers in August 2005. It consists of two B-heptominoes being hassled by two figure eights and two unices. In 18 generations the B-heptominoes are flipped into a centuries and a pair of blocks by unices, which then reacts with the blocks and figure eights to be flipped back into B-heptominoes in 61 generations, but with extra blocks. The extra blocks move the B-heptominoes forward without leaving extra centuries. Although this looks at first sight like a shuttle, it isn't really, because each side of the oscillator uses a different hassling reaction. Like a regular twin bees shuttle, it can reflect gliders.

External links