Word: thinning
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Dates: during 1920-1929
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...balance. Masses of density different from the surrounding rock, tend to deflect the direction of gravity and the change, though almost infinitesimal, from the standpoint of ordinary human experience, is capable of measurement by observing the amount of rotation of a light beam appropriately weighted and suspended on a thin platinum wire. Ore bodies themselves are rarely large enough to cause detectable variations in gravity, but large features such as heavier rock in cores of folds, dome-shaped masses of salt, or bleached cavernous ground can often be recognized by the anomalies caused by them in the gravitational field...
Identifying poisonous snakes is easy. Most of them belong to the pit-viper family. They have a deep depression between eye and nostril. Heads are flat and triangular, necks thin, bodies stout, tails short, eyes with elliptical pupils like a cat's. Fangs fold back against the roof of the mouth. A single row of scales runs along the belly. The biggest U. S. snake is the eastern diamond-back rattler, which grows to nine feet...
...treated might be beneficial in epilepsy, nervous disease of obscure causes. So the two learned men tried to make the poor venomous fool angry and despatch his poison at a piece of glass. Perhaps wiser than most snakes, perhaps as lazy as most, the cobra spewed forth only a thin and useless spray. The two wise men felt foolish...
After a preliminary, characteristic sweep of the left hand over his thin black hair, Tycoon Young hitched his chair a trifle and said...
Vice President Queeney described the "generator" thus: "It consists of an aluminum pot in which is set a nest of stationary thin-curved plates radiating from a central core. The pot is heated by the exhaust from the engine. The fuel is drawn from a standard carburetor through the inside of the pot over the surface of the warm plates, where it is converted into a dry gas and there it passes through the intake manifold into the cylinders...