Science: Bending the Beam

In Boulder, Colo. last week, Roger M. Gallet, a physicist for the National Bureau of Standards, exuberantly described the most dramatic experiment of his career. Said he: "It was like this: whop and then whop." Gallet's "whops" bade fair to change the scientific world's concept of radar and its potential.

Until recently, most scientists assumed that radar signals would travel only in a straight line. But, working independently, both Gallet (rhymes with ballet) and Professor Henry G. Booker of Cornell University concluded that the skies over the earth were full of radar "pipes"—masses...

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