Puffer: Difference between revisions
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==See also== | ==See also== | ||
*[[Blinker puffer]] | |||
*[[:Category:Puffers|List of puffers]] | *[[:Category:Puffers|List of puffers]] | ||
==External links== | ==External links== | ||
[http://www.argentum.freeserve.co.uk/lex_p.htm#puffer Puffer] at the Life Lexicon | [http://www.argentum.freeserve.co.uk/lex_p.htm#puffer Puffer] at the Life Lexicon | ||
Revision as of 18:32, 19 January 2009
A puffer is an object that moves like a spaceship, except that it leaves debris behind. The first known puffers were found by Bill Gosper and travelled at c/2 orthogonally (see puffer 1 for the very first one, found in 1971). Not long afterwards, c/12 diagonal puffers were found (see switch engine). Discounting wickstretchers (which are not puffers in the conventional sense), no new velocity was obtained after this until David Bell found the first c/3 orthogonal puffer in April 1996. Since then c/5 orthogonal puffers have also been found, the first by Tim Coe in May 1997. Jason Summers built the first c/4 orthogonal puffer in January 1999, and the first 2c/5 orthogonal puffer in February 1999.
See also
External links
Puffer at the Life Lexicon