Word: earthed
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Dates: during 1920-1929
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...long line of philosophers who have tried to explain the Earth's origin, the best died last week. He was Thomas Chrowder Chamberlin, 85, professor emeritus of geology at the University of Chicago. His death was due to heart disease, made worse by bronchial pneumonia. His theory, the planetesimal, he ex pounded again in a new book published only last month - The Two Solar Families - the Sun's Children (University of Chicago Press, $2.50). In brief his theory is this : Eons ago a Star, swished near the Sun and by its gravity, sucked a great, explosive cloud...
...particles bumped into each other and many larger particles. Larger particles kept colliding until planetesimals developed. Planetesimals smashed into each other in such quantities that eventually Sun planets, including the Earth, acquired huge mass and the power to hold great satellites, like the Moon, in their own orbits...
People who looked skyward the nights of Nov. 14 and 15 saw the year's amplitude of meteors. Earth was making its annual passage through the orbit of the Leonids. Their orbit is a vast ellipsis swinging beyond even Jupiter, and along its path race hunks of stone, iron and other minerals. When those pieces strike the Earth's atmosphere friction makes them terrifically hot. They burn with an intense blue flame. Some burn up entirely, some plunge into Earth's earth or seas, adding their mite to Earth's size and power among the astral...
...Marconi system a number of wires at each side of the sending antennae keep the waves from spraying sideways, but not from up-&-down. It is not properly a beam at all. It is a very narrow sheet of short waves that go around the earth like a ruff. They suffer the same troubles, in less degree, that the diffuse long waves...
...theorical envelope of the earth's atmosphere, estimated to be 350 miles out. That it exists is the best current explanation for radio static, fading and silent pockets. Radio waves spray out from sending stations. Supposedly some hug the earth on their way to receiving sets; others reach the sets tardily by reflection from the Heaviside Layer. Probably the sprayed waves, going by the two paths, interfere with each other. One idea is that the Layer lies close to earth at the two Poles. The Byrd Antarctic expedition took along a Westinghouse ossilograph to find...