Difference between revisions of "P72 quasi-shuttle"
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|isorulemin = B3/S23 | |isorulemin = B3/S23 | ||
|isorulemax = B3/S234c5ek6i7e | |isorulemax = B3/S234c5ek6i7e | ||
|synthesis = 26 | |||
|plaintext = true | |plaintext = true | ||
|rle = true | |rle = true | ||
|viewerconfig = #C [[ THUMBSIZE 2 Z 12 GPS | |viewerconfig = #C [[ THUMBSIZE 2 Z 12 GPS 6 LOOP 72 ]] | ||
|apgcode = xp72_gk2gb3y8ggggy1oomewccz11yc168972y0cczoo0gyaomhpe4xgjjz0240dcyh1167w33 | |apgcode = xp72_gk2gb3y8ggggy1oomewccz11yc168972y0cczoo0gyaomhpe4xgjjz0240dcyh1167w33 | ||
|pentadecathlonid = 84P72.1 | |pentadecathlonid = 84P72.1 | ||
}} | }} | ||
''' | '''p72 quasi-shuttle''' is a {{period|72}} [[oscillator]] found by [[Jason Summers]] on August 19, {{year|2005}}.<ref>{{CiteSummersPattern|name=jslife|accessdate=March 14, 2020}}</ref> | ||
A [[twin bees shuttle]] variant, 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 the active object does not appear flipped at any point. Like a regular twin bees shuttle, it can reflect gliders with the duoplet spark. | |||
There is a 96-cell [[dimer]] with static symmetry D4_+2 that is notably [[statorless]], and has the same cost in glider synthesis. | |||
==References== | |||
<references /> | |||
==External links== | ==External links== | ||
{{LinkLexicon|lex_p.htm#p72quasishuttle|name=p72 quasi-shuttle}} | {{LinkLexicon|lex_p.htm#p72quasishuttle|name=p72 quasi-shuttle}} | ||
{{LinkCatagolue|xp72_gk2gb3y8ggggy1oomewccz11yc168972y0cczoo0gyaomhpe4xgjjz0240dcyh1167w33|patternname=p72 quasi-shuttle}} | {{LinkCatagolue|xp72_gk2gb3y8ggggy1oomewccz11yc168972y0cczoo0gyaomhpe4xgjjz0240dcyh1167w33|patternname=p72 quasi-shuttle}} | ||
{{LinkCatagolue|xp72_ooo777ybgggy0gggyb777oooz111y979b3y83b97y9111zoooy9e9dc0gggy0ggg0cd9ey9oooz111eeeyz0eee111|patternname=Statorless p72 quasi-shuttle dimer}} | |||
{{LinkPentadecathlonObject|84P72.1}} | {{LinkPentadecathlonObject|84P72.1}} | ||
{{Sparker|p=72|type=reflecting duoplet|strength=strong|type2=domino}} | |||
{{Symmetry|orthogonal2}} | {{Symmetry|orthogonal2}} | ||
{{DISPLAYTITLE:p72 quasi-shuttle}} | {{DISPLAYTITLE:p72 quasi-shuttle}} |
Latest revision as of 13:14, 17 February 2024
p72 quasi-shuttle | |||||||||
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Pattern type | Oscillator | ||||||||
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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 | ||||||||
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p72 quasi-shuttle is a period-72 oscillator found by Jason Summers on August 19, 2005.[1]
A twin bees shuttle variant, 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 the active object does not appear flipped at any point. Like a regular twin bees shuttle, it can reflect gliders with the duoplet spark.
There is a 96-cell dimer with static symmetry D4_+2 that is notably statorless, and has the same cost in glider synthesis.
References
- ↑ Jason Summers' jslife pattern collection. Retrieved on March 14, 2020.
External links
- p72 quasi-shuttle at the Life Lexicon
- 84P72.1 at Heinrich Koenig's Game of Life Object Catalogs
- Patterns
- Oscillators with 84 cells
- Periodic objects with minimum population 84
- Patterns with 84 cells
- Patterns found by Jason Summers
- Patterns found in 2005
- Patterns that can be constructed with 26 gliders
- Outer-totalistically endemic patterns
- Oscillators
- Oscillators with period 72
- Oscillators with mod 72
- Oscillators with heat 80
- Oscillators with volatility 0.96
- Oscillators with strict volatility 0.59
- Sparkers
- Sparkers with period 72
- Reflecting duoplet sparkers
- Strong sparkers
- Domino sparkers
- Patterns with bilateral orthogonal symmetry