Word: megatonic
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Dates: during 1970-1979
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...Winston Churchill once said, serves only to "make the rubble bounce." In anything other than an all-out nuclear war, however, accuracy of missiles becomes the critical factor. Here the U.S. has a substantial technological advantage. It requires three of Russia's burly S59 missiles?each with a 25-megaton yield?to hit the same targets as one U.S. Minuteman III with its three warheads and total yield of 600 kilotons...
...They re port in Nature that the black hole's passage through the atmosphere would have left a deep blue trail of ionized particles like the streak seen by witnesses near the 1908 blast. Finally, the energy released by the black hole (comparable to that of a ten-megaton hydrogen bomb) could easily have caused the observed damage without leaving material residue or a crater...
...winds build and the tropical storm edges away from its birthplace, it releases enormous stores of heat. In a full-fledged hurricane, which has winds of 75 m.p.h. or more, as much energy may be released in a single day as by the detonation of 400 20-megaton hydrogen bombs...
...that it can focus its worries on China. Those worries were not helped last week when China exploded a hydrogen bomb in Sinkiang province. It was China's 15th test explosion since it joined the nuclear club in 1964. Estimated to be in the two-to three-megaton range, it was probably the biggest Chinese nuclear blast to date...
...that the nation's decision makers rightly regarded those estimates as "self-serving, budget-oriented and generally inflated." But, he wrote, the Pentagon has so greatly reformed and improved its analysis in recent years that there will be no more "bad overestimates" like "bomber gaps," "missile gaps," and "megaton gaps...