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1953 U.S. weapons designers had invented a way to make hydrogen bombs
small and lightweight. This meant that an ICBM did not need to be
as large as previously thought. The "Bravo" test, conducted
in the South Pacific in 1954, confirmed the feasibility of the smaller
new H-bomb design. The era of the ICBM was at hand.
Courtesy
of Los Alamos National Laboratory
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