Science: Twenty-Two Miles High

Japan's long-distance scientific atom-bomb watchers (TIME, March 12 et seq.) were convinced that a nuclear weapon fired by the U.S. July 3 over Bikini was carried by a rocket, not an airplane, and that it exploded at a height of at least 22 miles.

Kameo Ito, chief of the government's Yamagata meteorological observatory, bases his theory on a close study of the air waves from U.S. and Soviet tests. When a bomb is exploded on the ground or near it, says Ito, the shock waves spreading upward into the lower stratosphere are lengthened and delayed by air conditions there. Eventually they are...

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