Collier's New Encyclopedia

A complete general encyclopedia of 1921 — the world as it was understood just after the Great War, from Aachen to Zwingli, across twelve volumes and six thousand pages.

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Astraphobia

a term used to de- (See WASHINGTON CONFERENCE.) many persons to the approach or in the presence of thunderstorms. The condition has been attributed to the increase in atmospheric electricity, as well as to changes in other atmospheric conditions such as accompany the gathering of storms.

ATOMIC ENERGY. The question of the possibility of developing new sources of power for human use, in view of the such as accompany the gathering of ATOMIC ENERGY. The question of oil, and other resources of the earth, has storms. the possibility of developing new sources of power for human use, in view of the ergy locked up in the atoms of matter.

Such energy is as inexhaustible as matter itself and is known to be enormous in AUDION amount. The disintegration of radium, for instance, is accompanied by an emisit is possible to estimate that the energy sion of heat sufficient to raise an equal boiling point. According to some sciensufficient to raise the temperature of ten point once every hour; or, in other words, reservoirs, they maintain, can be nothing body the size of the sun would be capable contained in one radium gram would be boiling point. According to some scientists, the sun and stars must be drawing on vast reservoirs of energy by means at present unknown to us, and these reservoirs, they maintain, can be nothing else than the subatomic energies of matter. The amount of such energy in a body the size of the sun would be capable of maintaining its output of heat for fifteen billion years. Artificial methods of disintegrating atoms, as radium is gradually disintegrating by nature, are at ly predicted by many scientists. vented by Dr. L. de Forest and employed AUDION, a vacuum-tube device inextensively in recent wireless telegraphy and telephony, as well as in long-disly predicted by many scientists. possible, by

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