### Possible Answer

The Bethe-Feynman efficiency formula, a simple method for calculating the yield of a fission bomb, was first derived in 1943 after development in 1942. - read more

Richard Feynman - Problem Solving, Murray Gell-Mann talks about Richard Feynman, What are Feynman diagrams, Richard Feynman: Law of Gravitation (Part 2/3), Solar: Levelized Cost of Enegy (LCOE), Overlooked Achievement: The Life of Lise Meitner - read more

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