Word: length
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Dates: during 1930-1939
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...cable was laid in 1850 across 25 miles of English Channel from Dover to Cape Gris Nez, France. The first transatlantic cable was opened by Queen Victoria and President Buchanan in 1858. Since then, in all parts of the world, some 3,500 cables, totaling 300,000 miles in length, have been put in operation. They lie flat and tensionless on the floor of the ocean, avoid undersea peaks and canyons, go no deeper than about three miles, cost around $2,000 a mile. Inside each cable a copper conducting wire, 1 in. thick, is protected by layers of guttapercha...
...syndicated column that Einstein was writing a book on physics "which you, you and you can understand." It is doubtful whether many of Columnist Winchell's "you's" will find The Evolution of Physics light reading. The Book-of-the-Month Club considered the manuscript at length, finally rejected it as a club selection, fearing an avalanche of returns from readers who would find it too difficult. Yet the U. S. publishers have turned out a first printing of 5,000 copies. Cambridge University Press, which is handling the English publication, has printed 10,000 copies. The English...
When the idea of absolute time is abandoned, every body moving relative to another must have its own time specification as well as length, breadth, and thickness. Thus time becomes a fourth dimension added to the three dimensions of space. The consequences of the theory, when worked out mathematically, are that absolute motion, absolute mass and absolute dimensions must also be shelved. When a body is in motion relative to an observer, he would see (if he had instruments fine enough) that its length in the direction of motion is shortened, that its mass is increased. The increased mass must...
...first experimental confirmation was the bending of starlight in the gravitational field of the sun, observed during a solar eclipse in 1919. Others are the "stretching" (increased wave length) of light from heavy stars, the conversion of mass into energy in the laboratory, the recoil of a body which emits light. Relativity also explains eccentricities in Mercury's orbit, which had remained a mystery under Newtonian mechanics. Atom-smashers who build cyclotrons (machines in which atomic projectiles are whirled by electric and magnetic fields) take into careful consideration the Relativistic increase in mass of fast particles. In brief, Relativity...
Peace. Meanwhile the man who is generally regarded as the world's greatest living scientist lives placidly in a white frame house on Princeton's Mercer Street. He chose it for two dimensions, the height of its ceilings and the length of its flower garden in the back. He lives there with Margot, his late wife's daughter by a previous marriage, and his secretary, Fraulein Helen Dukas, who since Frau Einstein's death last year has looked after his bank account, his clothes and other things which to him are equally trivial. In the morning...