Difference between revisions of "David Buckingham"

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Oscillators of all periods 58 and above can be obtained in this way -- the Herschels collide with each other if they are closer than 58 [[generation]]s apart. Since Herschels naturally release [[glider]]s, this also yields glider [[gun]]s of all periods 62 and above -- the Herschels collide with the escaping gliders if they are closer than 62 generations apart.
Oscillators of all periods 58 and above can be obtained in this way -- the Herschels collide with each other if they are closer than 58 [[generation]]s apart. Since Herschels naturally release [[glider]]s, this also yields glider [[gun]]s of all periods 62 and above -- the Herschels collide with the escaping gliders if they are closer than 62 generations apart.


He has also found many other oscillators, including hundreds of [[billiard table configuration]]s, as well as a basic [[puffer train]]. He helped [[Noam Elkies]] construct the first period [[:Category:Oscillators with period 39|39]] oscillator in July [[:Category:Patterns found in 2000|2000]]. Similarly, he helped construct the first guns with [[true period]] equal to 50, 54, 55, and 56. He, [[Jason Summers]] and [[Dean Hickerson]] found the first  c/12 [[wickstretcher]] in March [[:Category:Patterns found in 1999|1999]].
He has also found many other oscillators, including hundreds of [[billiard table configuration]]s, as well as a basic [[puffer train]]. He helped [[Noam Elkies]] construct the first period {{period|39|brief}} oscillator in July {{year|2000}}. Similarly, he helped construct the first guns with [[true period]] equal to 50, 54, 55, and 56. He, [[Jason Summers]] and [[Dean Hickerson]] found the first  c/12 [[wickstretcher]] in March {{year|1999}}.


He developed most of the existing technology used in glider synthesis of still lifes, oscillators, and spaceships, and methodically generated syntheses of all still lifes and oscillators up to 14 cells, as well as many larger ones. He also significantly expanded the lists of known still lifes, first listing the 12 cell still lifes (simultaneously with Douglas Petrie and Everett Boyer), then listing the 13 cell still lifes, and using [[Peter Raynham]]'s search program to first list the 14 cell still lifes.
He developed most of the existing technology used in glider synthesis of still lifes, oscillators, and spaceships, and methodically generated syntheses of all still lifes and oscillators up to 14 cells, as well as many larger ones. He also significantly expanded the lists of known still lifes, first listing the 12 cell still lifes (simultaneously with Douglas Petrie and Everett Boyer), then listing the 13 cell still lifes, and using [[Peter Raynham]]'s search program to first list the 14 cell still lifes.

Revision as of 19:30, 28 December 2019

David Buckingham
Born Unknown
Residence Canada
Nationality Canadian
Institutions Unknown
Alma mater University of Waterloo

David J. Buckingham is a Life enthusiast who has not only found hundreds of important patterns, but who has also greatly developed the theory of what is known about oscillators and glider synthesis.

His most well-known discovery was revealed in 1996; a suite of track components that use eaters and other still lifes to move a Herschel. By combining several of these he showed that it is possible to produce circular conduits that take arbitrarily long to cycle a single Herschel. By placing multiple Herschels in such a conduit, oscillators of relatively small periods can be obtained.

Oscillators of all periods 58 and above can be obtained in this way -- the Herschels collide with each other if they are closer than 58 generations apart. Since Herschels naturally release gliders, this also yields glider guns of all periods 62 and above -- the Herschels collide with the escaping gliders if they are closer than 62 generations apart.

He has also found many other oscillators, including hundreds of billiard table configurations, as well as a basic puffer train. He helped Noam Elkies construct the first period 39 oscillator in July 2000. Similarly, he helped construct the first guns with true period equal to 50, 54, 55, and 56. He, Jason Summers and Dean Hickerson found the first c/12 wickstretcher in March 1999.

He developed most of the existing technology used in glider synthesis of still lifes, oscillators, and spaceships, and methodically generated syntheses of all still lifes and oscillators up to 14 cells, as well as many larger ones. He also significantly expanded the lists of known still lifes, first listing the 12 cell still lifes (simultaneously with Douglas Petrie and Everett Boyer), then listing the 13 cell still lifes, and using Peter Raynham's search program to first list the 14 cell still lifes.

Patterns found by David Buckingham

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References


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