Science: Atomic Snapshot

A just-exploded atom bomb is a difficult subject for photography. Its fireball expands so suddenly that no ordinary shutter can act quickly enough to freeze its motion. Last week the Atomic Energy Commission released a picture of a "nuclear device" caught in the very act of vaporizing the tower on which it had stood (see cut).

The picture was taken with a special camera made by Edgerton, Germeshausen & Grier, Inc. of Boston. Its shutter has no moving parts, only two sheets of polarizing material, something like the stuff in the glasses that are used to view 3-D movies. When light passes...

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