Word: earthed
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Dates: during 1920-1929
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Explorers are flag planters. But Explorer Richard Evelyn Byrd in his flight across unexplored Antarctica to the South Pole last week dropped no emblems of U. S. sovereignty (see page 64). Domain over the ice-locked continent at Earth's bleak nadir seemed likely to be determined not by fur-clad flag-planters but by silk-hatted diplomats...
...Earth's Rotation Irregular...
...planetary mystery much nearer home is the problem of the irregularities of the rotation of the earth--a phenomenon discovered through studies of the motion of the moon. For some years we have been familiar with the fact that the earth's rotation is slowing down, that the day is lengthening, and that the moon is receeding; we have learned that after an interval of some fifty thousand million years the month and the day will be the same length again, as they were at the time the earth-moon system was formed. That equality of month...
...observatories in Cambridge and South America and Arizona a branch school of medicine in China a main library with millions of books charts manuscripts; there are museums of a dozen specializations in short Harvard has become a great storehouse of our knowledge of man's past and of the earth and of the universe before and beyond man's own little history. And with this storehouse it has affiliated research units to advance our knowledge of whatever is a too small or, too remote, or too old, or too complex for the human senses to make direct account...
...breaks were found by exact instruments which measure the resistance of a continuous electrical conductor. Great grappling hooks groped for the cables on the sea floor. Healthy, temperate mechanics- spliced the broken wires to restore the intercourse of the hemispheres. Every half minute an earthquake occurs somewhere on earth. Great ones powerful enough to destroy towns happen about four times a year. Two especially sensitive zones exist: i) along the almost continuous stretch of the Alps, Caucasus and Himalaya mountains; 2) along the whole mountainous circle of the Pacific. Often shaken Italy is in the first zone, California and Japan...