Bethe–Feynman formula

The Bethe–Feynman efficiency formula, a simple method for calculating the yield of a fission bomb,[1] was first derived in 1943 after development in 1942. Aspects of the formula are speculated to be secret restricted data.[2]

  • a = internal energy per gram
  • b = growth rate
  • c = sphere radius

A numerical coefficient would then be included to create the Bethe–Feynman formula—increasing accuracy more than an order of magnitude.[3]

gollark: Anyway, this doesn't seem to... explain anything usefully? It seems like a retroactive justification for *why* stuff is the way it is, but in a way which doesn't seem amenable to making useful predictions, and is also extremely vague.
gollark: Also, screenshots exist. Please use them.
gollark: Never mind, I found the "cosmicwatch" thing online.
gollark: How does it detect muons?
gollark: You just have two particles where, if one has property X, the other is known to have the opposite property, is my very limited understanding.

See also

References
  1. http://nuclearweaponarchive.org/Nwfaq/Nfaq4-1.html
  2. Meeting and working with Richard Feynman at Los Alamos, Web of Stories, story by Hans Bethe recorded in December 1996, last accessed 2015/04/20.
  3. Hans Volland (1995). Handbook of atmospheric electrodynamics, Volume 2. CRC Press. ISBN 0-8493-2520-X.



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