Word: sketch
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...result of Manhattan Project Machinist David Greenglass's secret testimony in 1951, Julius and Ethel Rosenberg were executed for giving the Russians what the U.S. prosecutor described as a sketch of the 1945 Nagasaki "Fat Man" atomic bomb (see cut). For purportedly aiding the Rosenbergs, Morton Sobell got 30 years. But was the sketch substantially accurate...
...odds favor a yes answer. But if it is no, Prisoner Sobell may conceivably succeed in his current bid for freedom. Indeed, two ex-Manhattan Project scientists are prepared to back Sobell's claim that the sketch was false, inaccurate and incomplete. Whatever the outcome, the case has already supplied a crucial bit of historical fallout. Last week a Manhattan federal court released the long-impounded alleged sketch of the Nagasaki bomb-the first time it has ever been seen in public...
...nuclear sophisticates, the sketch was actually old hat. Today, almost any bright high school physics student understands the basic principles of the Nagasaki bomb...
...order for such a bomb to explode, the fissionable core material of plutonium (sketch point E) must be raised to a supercritical mass, the point where sufficient neutrons are released and react with the core material to sustain violent nuclear reactions. In the implosion bomb shown in the sketch, shaped charges of high explosives (B) are simultaneously triggered by detonators (A), the force of the explosions being directed inward, rapidly compressing the plutonium around a beryllium neutron source (D). In less than a millionth of a second, the supercritical mass explodes...
...home. "The nation is becoming accustomed to waving farewell to Mr. Wilson just as things get uncomfortable," declared London's Daily Mail, recalling that Wilson took off on a trip to Moscow three weeks ago as the latest sterling crisis approached. The Prime Minister, added the Daily Sketch, "is in danger of becoming an absentee landlord...