Hydrogen Bomb test at Enewetak Atoll on November 1, 1952, and the first time one was exploded.

This is a clip of the Hydrogen Bomb test at Enewetak Atoll on November 1, 1952, and the first time one was exploded. The fireball was big enough to cover most of Manhattan Island. This clip show more of the aftermath of the nuclear cloud than do most films.