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Leo Szilard
Leo Szilard
(; until age 2; February 11, 1898 – May 30, 1964) was a Hungarian-American
physicist
and
inventor
. He conceived the
nuclear chain reaction
in 1933, patented the idea of a
nuclear reactor
with
Enrico Fermi
, and in late 1939 wrote
the letter
for
Albert Einstein
's signature that resulted in the
Manhattan Project
that built the
atomic bomb
.
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