US Dept. of Energy declassified film. First test of first full-fledged hydrogen bomb - Mike. Mike was detonated on the Island of Elugelab which was subsequently vaporized. "The hole Mike left was big enough to accomodate several Pentagon sized buildings and deep enough to hold the Empire State Building. Mike's yield was 10 megatons, signaling the expansion of the nuclear arsenal from fission to fusion, the same process that occurs in the Sun." Red Scare, countdown, nuclear blast