Word: burnout
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...Shortly afterward the Air Force issued a proud announcement: the big bird had flown successfully over a test course of several hundred miles. Reports had it that the missile, the seventh Atlas to be fired and the third to complete its programed course, was preset to swerve sharply after burnout in a test of structural strength. Apparently it scored...
...Burnout. The dinosaurs evolved in this oxygen-poor atmosphere and were adjusted to it, but when the angiosperms (modern broad-leaved plants and grasses) became dominant, the dinosaurs were headed for trouble. The vigorous angiosperms excreted so much oxygen that they changed the atmosphere. The oxygen-rich air increased the metabolism of the dinosaurs. They were compelled to live at a faster rate, and they could not gather the vast amounts of food their speeded-up bodies called for. So they burned out and died out, while the newly evolved mammals, well-adapted to oxygen-rich air, took over...