Word: crusts
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Dates: during 1920-1929
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...between one and 10 billion years" as estimated by timing the decomposition of uranium and other radioactive elements. Structure?a hades-hot metallic core, rigid as steel; then an envelope of viscous material, kept fluid by enormous pressure, not heat conducting, having faint tides, upon which the earth's ,crust "floats". The elasticity of the envelope which is 60 miles beneath the crust, and the core's rigidity, had been deduced from studying waves of force in earthquake shocks...
...North and South American continents rooted immovably into the curved crust of the earth, or are they slipping slowly away from Europe and toward Asia? Probably there is no slipping. The earth's crust is exceedingly solid, exceedingly strong...
...violently did the vulgar clasp him to its unclean bosom that the cultured upper classes reacted to any mention of his name as they would to a bathroom joke?they saw the point, but would not be caught laughing at it. This son of moonlight and custard pie crust was a green pea off the knives of the intelligentsia until statements of his began to appear in the public press to the effect that "Solitude is my only relief. ... I live with abstract thinkers, Spinoza, Schopenhauer, Nietzsche, Walter Pater. . . . Human contact makes me ill. ... I resolve to retire to some...
Both elements occur in the so-called Mangan group of inorganic earth elements (i. e. manganese, chromium) and constitute about a billionth part of the earth's crust. Inert, their commercial and scientific value is unknown, probably small...
...near earth, and burned to a "shooting star" and dust by atmospheric friction. At the moon, it flies on intact, strikes the moon with terrific impact. In a tenth of a second, the meteor is stopped, but it has penetrated two miles into the moon's stony crust. The friction of penetration heats the meteor to gaseous state, under such pressure that there is an instantaneous explosion "500 times as powerful as dynamite." After centuries of bombardment by swarms of meteors, the moon is everywhere pitted as by shell fire, not pocked as by eruptions. Measurements of pits made...