Pulsar quadrant: Difference between revisions
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Avoid links to just parts of heading, but also (maybe) avoid duplication and an awkward rewording when a full-heading link will work just fine -- see discussion in https://conwaylife.com/forums/viewtopic.php?p=177690#p177690 |
removed duplicate "Commonness" link in header because the "needs occurrence info" template currently provides the same link; experimentally reworded "LCM oscillators" section to put the link into the text instead of the heading -- see https://conwaylife.com/forums/viewtopic.php?p=177750#p177750 |
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'''Pulsar quadrant''' (or '''pulse''') is a {{period|3}} [[oscillator]] that was found by [[David Buckingham]] in July {{year|1973}}.<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> It consists of a quarter of the outer part of a [[pulsar]] stabilized by a [[cis-fuse with two tails]]. | '''Pulsar quadrant''' (or '''pulse''') is a {{period|3}} [[oscillator]] that was found by [[David Buckingham]] in July {{year|1973}}.<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> It consists of a quarter of the outer part of a [[pulsar]] stabilized by a [[cis-fuse with two tails]]. | ||
== | == Commonness == | ||
{{Needs occurrence info|type=oscillator}} | {{Needs occurrence info|type=oscillator}} | ||
== | == LCM oscillators == | ||
The smallest known oscillator of period 228 is an [[LCM oscillator]] comprised of a pulsar quadrant and a [[p76 pi-heptomino shuttle]]. | |||
{{EmbedViewer | {{EmbedViewer | ||
|rle = x = 35, y = 20, rule = B3/S23 | |rle = x = 35, y = 20, rule = B3/S23 | ||
Revision as of 13:49, 10 February 2024
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| Pattern type | Oscillator | ||||||||
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| Number of cells | 18 | ||||||||
| Bounding box | 9 × 9 | ||||||||
| Period | 3 (mod: 3) | ||||||||
| Heat | 8 | ||||||||
| Volatility | 0.46 | 0.46 | ||||||||
| Kinetic symmetry | Unspecified | ||||||||
| Rotor type | Pulsar | ||||||||
| Discovered by | David Buckingham | ||||||||
| Year of discovery | 1973 | ||||||||
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Pulsar quadrant (or pulse) is a period-3 oscillator that was found by David Buckingham in July 1973.[1] It consists of a quarter of the outer part of a pulsar stabilized by a cis-fuse with two tails.
Commonness
Information on this oscillator's commonness with respect to other naturally-occurring patterns is currently unknown.
LCM oscillators
The smallest known oscillator of period 228 is an LCM oscillator comprised of a pulsar quadrant and a p76 pi-heptomino shuttle.
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See also
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
External links
- Pulsar quadrant at the Life Lexicon
- 18P3.39 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Oscillators with 18 cells
- Periodic objects with minimum population 18
- Patterns with 18 cells
- Patterns found by David Buckingham
- Patterns found in 1973
- Patterns that can be constructed with 9 gliders
- Oscillators
- Oscillators with period 3
- Oscillators with mod 3
- Oscillators with heat 8
- Oscillators with volatility 0.46
- Oscillators with strict volatility 0.46
- Oscillators with rotor Pulsar
- Patterns with bilateral diagonal symmetry
- Sparkers
- Sparkers with period 3
- Weak sparkers
- Natural periodic objects