Why not: Difference between revisions
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|name = Why not | |name = Why not | ||
|pname = whynot | |pname = whynot | ||
|c = 14 | |c = 14 | ||
|bx = 7 | |bx = 7 | ||
| Line 11: | Line 10: | ||
|h = 15 | |h = 15 | ||
|v = 0.68 | |v = 0.68 | ||
|symmetry = -c | |||
|discoverer = David Buckingham | |discoverer = David Buckingham | ||
|discoveryear = 1977 | |discoveryear = 1977 | ||
|rulemin = B3/S23 | |rulemin = B3/S23 | ||
|rulemax = B3678/S2345678 | |rulemax = B3678/S2345678 | ||
|isorulemin = B3enqr/S2ci3cy | |isorulemin = B3enqr/S2ci3cy | ||
|isorulemax = B2ikn34-ejkt5-e678/S2345678 | |isorulemax = B2ikn34-ejkt5-e678/S2345678 | ||
| Line 27: | Line 26: | ||
|pentadecathlonid = 14P2.20 | |pentadecathlonid = 14P2.20 | ||
}} | }} | ||
'''Why not''' is a {{period|2}} [[oscillator]] found by [[David Buckingham]] in July {{year|1977}}<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> | '''Why not''' is a {{period|2}} [[oscillator]] found by [[David Buckingham]] in July {{year|1977}}.<ref>{{CiteHickersonOscillators|accessdate=March 14, 2020}}</ref> | ||
This oscillator resembles [[by flops]] | This oscillator resembles [[by flops]] very strongly; indeed, by flops can be transformed into why not simply by placing an extra cell at one of the two Y-shaped appendages at a given side. Performing this on both sides gives [[why bother]]. | ||
== [[List of common oscillators|Commonness]] == | == [[List of common oscillators|Commonness]] == | ||
It first appeared [[natural]]ly on April 15, {{year|2015}}, in a [[soup]] submitted to [[Catagolue]] by [[Brett Berger]].<ref name="post18762" /> | It first appeared [[natural]]ly on April 15, {{year|2015}}, in a [[soup]] submitted to [[Catagolue]] by [[Brett Berger]].<ref name="post18762" /> | ||
Roughly 1 in 146 billion soups contain this oscillator in their ash. | |||
== [[Glider synthesis]] == | == [[Glider synthesis]] == | ||
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{{LinkPentadecathlonObject|14P2.20}} | {{LinkPentadecathlonObject|14P2.20}} | ||
__NOTOC__ | __NOTOC__ | ||
Latest revision as of 16:47, 21 February 2026
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| Pattern type | Oscillator | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Number of cells | 14 | ||||||||
| Bounding box | 7 × 7 | ||||||||
| Frequency class | 39.9 | ||||||||
| Period | 2 (mod: 2) | ||||||||
| Heat | 15 | ||||||||
| Volatility | 0.68 | 0.68 | ||||||||
| Kinetic symmetry | -c | ||||||||
| Discovered by | David Buckingham | ||||||||
| Year of discovery | 1977 | ||||||||
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Why not is a period-2 oscillator found by David Buckingham in July 1977.[1]
This oscillator resembles by flops very strongly; indeed, by flops can be transformed into why not simply by placing an extra cell at one of the two Y-shaped appendages at a given side. Performing this on both sides gives why bother.
It first appeared naturally on April 15, 2015, in a soup submitted to Catagolue by Brett Berger.[2] Roughly 1 in 146 billion soups contain this oscillator in their ash.
Goldtiger997 found an 8-glider synthesis for the oscillator on August 23, 2016,[3] and reduced the cost to 7 gliders on January 21, 2019 with a new script for 3-glider collisions.[4]
References
- ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
- ↑ Brett Berger (April 16, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ Goldtiger997 (August 23, 2016). Re: Soup search results (discussion thread) at the ConwayLife.com forums
- ↑ Goltiger997 (January 21, 2019). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums
External links
- Why not at the Life Lexicon
- 14P2.20 at Heinrich Koenig's Game of Life Object Catalogs
Categories:
- Patterns
- Patterns with Catagolue frequency class 39
- Natural periodic objects
- Oscillators with 14 cells
- Periodic objects with minimum population 14
- Patterns with 14 cells
- Patterns found by David Buckingham
- Patterns found in 1977
- Patterns that can be constructed with 7 gliders
- Oscillators
- Oscillators with period 2
- Oscillators with mod 2
- Oscillators with heat 15
- Oscillators with volatility 0.68
- Oscillators with strict volatility 0.68
- Oscillators with -c symmetry