Difference between revisions of "Pi orbital"
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{{Oscillator|name=Pi orbital|pname=piorbital|bx=59|by=59|h=270.7| | {{Oscillator | ||
'''Pi orbital''' is a | |name = Pi orbital | ||
period 4 oscillator that also supports the oscillator. | |pname = piorbital | ||
|c = 305 | |||
|bx = 59 | |||
|by = 59 | |||
|p = 168 | |||
|m = 42 | |||
|h = 270.7 | |||
|v = 0.91 | |||
|sv = 0.61 | |||
|discoverer = Noam Elkies | |||
|discoveryear = 1995 | |||
|rulemin = B3/S23 | |||
|rulemax = B3/S23 | |||
|rulespecial = [[Conway's Game of Life|Conway Life]] | |||
|isorulemin = B3/S23 | |||
|isorulemax = B3/S236ei | |||
|plaintext = true | |||
|rle = true | |||
|animated = true | |||
|apgcode = xp168_y965la8ceeeec8al56zy3888o040o11wo4xg190ggggy2ccy6szy72441x161x38841ydc2ghh4y0o8gzy3ggywo0cgy0jpu121zy311yw10jggx7fvzy5syv3408o2w321e96z697o4cw4hhg2cyv3zxvvuy0gc0oyh27dod72y4oozo4o79cwggg301z011y02o8043yagggo211sx8m8xo224gzy43y633y7p8y021w8o10201111zyq6aa5137777315aa6 | |||
|viewerconfig = #C [[ GPS 14 ZOOM 4 LOOP 168 ]] | |||
}} | |||
'''Pi orbital''' is a {{period|168}} [[oscillator]] that was found by [[Noam Elkies]] on August 22, {{year|1995}}.<ref>{{CiteSummersPattern|name=jslife|accessdate=March 14, 2020}}</ref> It works by using four [[crown]]s and four [[block]]s to turn a [[pi heptomino]] ninety degrees every 42 [[generation]]s. A second pi heptomino can be inserted to reduce the period to 84. On March 26, {{year|2009}} [[Nicolay Beluchenko]] found [[44P12.3|a relatively small period 12 sparker]] that could replace the crowns. On April 6, {{year|2010}} [[Matthias Merzenich]] discovered the [[Blocked_p4-4|Blocked p4-4]] period 4 oscillator that also supports the oscillator. | |||
==Image gallery== | ==Image gallery== | ||
Line 15: | Line 37: | ||
*[[Popover]] | *[[Popover]] | ||
*[[Pi portraitor]] | *[[Pi portraitor]] | ||
==References== | |||
<references /> | |||
==External links== | ==External links== | ||
{{LinkLexicon|lex_p.htm#piorbital}} | {{LinkLexicon|lex_p.htm#piorbital}} | ||
{{LinkCatagolue|xp168_y965la8ceeeec8al56zy3888o040o11wo4xg190ggggy2ccy6szy72441x161x38841ydc2ghh4y0o8gzy3ggywo0cgy0jpu121zy311yw10jggx7fvzy5syv3408o2w321e96z697o4cw4hhg2cyv3zxvvuy0gc0oyh27dod72y4oozo4o79cwggg301z011y02o8043yagggo211sx8m8xo224gzy43y633y7p8y021w8o10201111zyq6aa5137777315aa6|format=extended}} | |||
{{Symmetry|osc=turn90}} | |||
__NOTOC__ |
Revision as of 19:04, 14 March 2020
Pi orbital | |||||||||
View animated image | |||||||||
View static image | |||||||||
Pattern type | Oscillator | ||||||||
---|---|---|---|---|---|---|---|---|---|
Number of cells | 305 | ||||||||
Bounding box | 59 × 59 | ||||||||
Period | 168 | ||||||||
Mod | 42 | ||||||||
Heat | 270.7 | ||||||||
Volatility | 0.91 | ||||||||
Strict volatility | 0.61 | ||||||||
Discovered by | Noam Elkies | ||||||||
Year of discovery | 1995 | ||||||||
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Pi orbital is a period-168 oscillator that was found by Noam Elkies on August 22, 1995.[1] It works by using four crowns and four blocks to turn a pi heptomino ninety degrees every 42 generations. A second pi heptomino can be inserted to reduce the period to 84. On March 26, 2009 Nicolay Beluchenko found a relatively small period 12 sparker that could replace the crowns. On April 6, 2010 Matthias Merzenich discovered the Blocked p4-4 period 4 oscillator that also supports the oscillator.
Image gallery
See also
References
- ↑ Jason Summers' jslife pattern collection. Retrieved on March 14, 2020.
External links
- Pi orbital at the Life Lexicon
- Pi orbital at Adam P. Goucher's Catagolue (extended)
Categories:
- Patterns
- Oscillators with between 300 and 399 cells
- Periodic objects with minimum population between 300 and 399
- Patterns with between 300 and 399 cells
- Patterns found by Noam Elkies
- Patterns found in 1995
- Outer-totalistically endemic patterns
- Oscillators
- Oscillators with period 168
- Oscillators with mod 42
- Oscillators with heat between 200 and 299
- Oscillators with volatility 0.91
- Oscillators with strict volatility 0.61
- Non-flipping oscillators that turn 90 degrees