Pinwheel: Difference between revisions

From LifeWiki
Jump to navigation Jump to search
← Older editNewer edit →
GUYTU6J (talk | contribs)
Trusted users
3,957 edits
Undo revision 87376 by Book (talk): The two oscillators have different rotors
Tag: Undo
synthesis reference
Line 20: Line 20:
|isorulemax      = B2in34-intw5aceiy678/S01e234-n5678
|isorulemax      = B2in34-intw5aceiy678/S01e234-n5678
|synthesis        = 189
|synthesis        = 189
|synthesis2      = 113
|synthesisRLE    = true
|synthesisRLE    = true
|plaintext        = true
|plaintext        = true
Line 26: Line 27:
|viewerconfig    = #C [[ TRACKLOOP 4 0 0 GPS 2 THUMBSIZE 2 ]]
|viewerconfig    = #C [[ TRACKLOOP 4 0 0 GPS 2 THUMBSIZE 2 ]]
|apgcode          = xp4_gg0g88bbgz11078c9a7066zy033
|apgcode          = xp4_gg0g88bbgz11078c9a7066zy033
|apgcode2        = xp4_c4owggml56z09f0fghkif0cczy166
|pentadecathlonid = 35P4.10
|pentadecathlonid = 35P4.10
}}
}}
'''Pinwheel''' (or '''Catherine wheel'''<ref>{{CiteLexicon|file=lex_c.htm#catherinewheel|name=Catherine wheel|accessdate=December 3, 2018}}</ref>) is a {{period|4}} [[oscillator]] found by [[Simon Norton]] in April {{year|1970}}.<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> It is a [[billiard table configuration]] and possibly the first period 4 oscillator discovered.
'''Pinwheel''' (or '''Catherine wheel'''<ref>{{CiteLexicon|file=lex_c.htm#catherinewheel|name=Catherine wheel|accessdate=December 3, 2018}}</ref>) is a {{period|4}} [[oscillator]] found by [[Simon Norton]] in April {{year|1970}}.<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> It is a [[billiard table configuration]] and possibly the first period 4 oscillator discovered. Later, another billiard table [[clock 2]] was found, which has the same stator as pinwheel.
 
On April 22, {{year|2016}}, [[Martin Grant]] provided a [[glider synthesis]] for this oscillator. Using the same precursor, the two routes to pinwheel and clock 2 diverge in the middle.<ref name="post30315" />


==See also==
==See also==
Line 35: Line 39:


==References==
==References==
<references />
<references>
<ref name="post30315">{{LinkForumThread
|format    = ref
|p          = 30315
|title      = Re: Synthesising Oscillators
|author    = Martin Grant
|date      = April 22, 2016
}}</ref>
</references>


==External links==
==External links==

Revision as of 02:53, 25 December 2021

Pinwheel
6b2o4b$6b2o4b2$4b4o4b$2obo4bo3b$2obo2bobo3b$3bo3b2ob2o$3bobo2bob2o$4b 4o4b2$4b2o6b$4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ TRACKLOOP 4 0 0 GPS 2 THUMBSIZE 2 ]]
View animated image
View static image
Pattern type Oscillator
Oscillator type Billiard table
Family Pinwheel
Number of cells 35
Bounding box 12 × 12
Period 4 (mod: 1)
Heat 4.0
Volatility 0.20 | 0.20
Kinetic symmetry Unspecified
Discovered by Simon Norton
Year of discovery 1970

Pinwheel (or Catherine wheel[1]) is a period-4 oscillator found by Simon Norton in April 1970.[2] It is a billiard table configuration and possibly the first period 4 oscillator discovered. Later, another billiard table clock 2 was found, which has the same stator as pinwheel.

On April 22, 2016, Martin Grant provided a glider synthesis for this oscillator. Using the same precursor, the two routes to pinwheel and clock 2 diverge in the middle.[3]

See also

References

  1. ↑ "Catherine wheel". The Life Lexicon. Stephen Silver. Retrieved on December 3, 2018.
  2. ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  3. ↑ Martin Grant (April 22, 2016). Re: Synthesising Oscillators (discussion thread) at the ConwayLife.com forums


Retrieved from "https://conwaylife.com/w/index.php?title=Pinwheel&oldid=87632"