Word: nuclear
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Dates: during 1960-1969
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...inside (see diagram). These, in turn, would cause the remaining lens-shaped explosives to detonate. Because all of the conventional charges would not explode simultaneously, as they are designed to do, the resulting implosion would not be uniform enough to start a critical reaction in the core of the nuclear device; it would simply damage the warhead and turn it into...
Slow Fission. Even if the shock wave fails to set off the warhead's conventional explosive, it can damage electronic components or cause sufficient changes in the critical shape of internal cavities within the warhead to prevent a nuclear explosion. In addition, the heating of the ICBM's exterior may so damage its heat shield that the missile would burn up upon entering the atmosphere...
...into the ICBM's outer shell of uranium 238, they can produce slow fission, causing heat that may deform the warhead or set off its lens charges. The neutrons may also whiz into the warhead's core of uranium 235, causing it to explode in a premature nuclear blast while still hundreds of miles from its target...
...Spartan batteries-backed up by smaller and faster Sprint missiles for short-range interception of ICBMs that penetrate the X-ray curtain-would not provide sufficient protection against a determined and massive attack by the Soviet Union. Using shielding, decoys, multiple and maneuverable warheads and radar-jamming chaff or nuclear explosions, the Russians could confuse and overwhelm U.S. defenses-just as the U.S. could overcome theirs...
...that theme, Physicist Rabi, 68, who was born in the old Austro-Hungarian empire, grew up in New York's Lower East Side and went on from a Ph.D. at Columbia University to become one of the nation's pioneer nuclear researchers, ended 37 years of teaching at Columbia. A 1944 Nobel prizewinner, Rabi developed the molecular-beam magnetic-resonance theories that laid the foundation for microwave radar, lasers, masers and modern radio astronomy. He was a consultant to the Manhattan Project that built the first atom bomb, and was one of the men responsible for creating...