Why not: Difference between revisions

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{{LinkPentadecathlonObject|14P2.20}}
{{LinkPentadecathlonObject|14P2.20}}


{{Symmetry|orthogonal2}}
__NOTOC__
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Revision as of 14:15, 7 August 2024

Why not
3bo3b$3bobob$bo5b$ob5o$bo5b$3bobob$3bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ LOOP 2 GPS 2 THUMBSIZE 2 ]]
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

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]

This pattern has occurred naturally in Catagolue's asymmetric censuses, however details of its rarity are currently not known.

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

  1. ↑ Dean Hickerson's oscillator stamp collection. Retrieved on March 14, 2020.
  2. ↑ Brett Berger (April 16, 2015). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  3. ↑ Goldtiger997 (August 23, 2016). Re: Soup search results (discussion thread) at the ConwayLife.com forums
  4. ↑ Goltiger997 (January 21, 2019). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums