Word: 5tratospheric
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Dates: during 1961-1961
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...5TRATOSPHERIC FALLOUT. The third kind of fallout-stratospheric-will not disappear so quickly. Bombs of more than a megaton of power send a large part of their ballooning fireballs climbing high into the stratosphere where there are no falling raindrops or snowflakes. In the frigid stable stratosphere, extremely fine particles of radioactive matter from a big bomb may hang suspended for years-and the bigger the bomb, the more of its dangerous fallout goes into the stratosphere...
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