THE ATOM: Largest Ever

Early one May morning, a roaring pillar of flame hurtled up over Eniwetok Atoll. In brief and terrible seconds the fireball blossomed into the mushrooming cloud that hovers like some sinister symbol over atomic explosions. Afterwards, as soon as things were reasonably safe, scientists, construction crews and military technicians from Joint Task Force Three swarmed ashore at the "target" island. They measured what was left to measure, studied the effects of the blast that had been seen as far as Kwajalein, 375 miles away, made ready to conduct still more tests. Then, after two years of work and two...

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