Word: earth
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Dates: during 1930-1939
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From what in Leningrad corresponds to Washington's U. S. Bureau of Standards, last week came a method of determining where lightning is apt to strike. A bolt jumps from a cloud to earth when the atmospheric electrical tension becomes stronger than the resistance of the air between. The air resistance depends upon its ionization, and the ionization-Professor L. N. Bogoiavlensky assumes-depends on buried radioactive rocks and the electro-conductivity of the earth above. Hence he and his assistants go about with meters to register such radio-activity and electro-conductivity...
Where the meters show a level plain or plateau of hidden rocks the air will be lightly and uniformly ionized over large areas and there will be practically no cloud-to-earth lightning flashes. But where the underground profile is jagged with peaks and valleys, the irregular ionic counterparts in the air induce lightning to crash down the ionic ladders...
...lives in cool Maine, blandly told them they were enjoying a period of cool summers which began 4,500 years ago and would last 6,500 years more. Germany's Dr. Rudolf Spitaler first suspected that the northern hemisphere has warm summers when the eccentricity of earth's orbit swings it close to the sun during the northern summer...
...Tethys Deep" was bridged by Central America was indicated by Yale's Dr. Hellmut de Terra. With the cooling and shrinking of earth's underlying shell of magmatic (semifluid) rock, the northern and southern land masses drew toward each other. Pinched between them, the bottom of the "Tethys Deep" wrinkled, bulged upward, finally, as the pressure increased, emerged from the water to form a bridge...
Cosmic Ripples. Dr. Arnold Heim. famed oil & mining consultant, attended the I. G. C. as a delegate of the Swiss Government and the Swiss Academy of Science. Landing in Manhattan last month, he made news by promising to disclose a new theory to explain the twitchings that have changed earth's face. Last week he kept his promise. First with merciless logic he assailed the old thesis that earth's crustal movements represented the spending of terrestrial energy...