No description at National Archives but listed in AEC 16mm film combined catalog (1966): "The operation, principles, and scientific applications of nuclear reactors, used as research tools in various projects, are briefly described. Types of research that reactors and associated equipment make possible are shown at length.

The Magic Of The Atom, No. 031, Atomic Energy For Space.

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.