Word: wave
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Dates: during 1950-1959
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...believe it quite possible that history may some day record that the crest of the Communist wave of coldblooded aggression was broken against the arms and the will to fight of the United Nations battle team in Korea...
...lack of real lure is basic: the book is too cute and commonplace; the tunes seem reminiscent even when they are sprightly; the lyrics have an arid cleverness. And though George Balanchine is a superb "serious" choreographer, his dances here suggest a few bright ideas plus a farewell wave of the hand. Joe E. Brown is droll and likable; and with a stylish, skittish-spinsterish ditty called Golden Moment, Carmen Mathews stops the show...
...redshift was first discovered by Edwin P. Hubble, most famous of the Palomar astronomers, and on it he based his startling theory of "the expanding universe." The spectrum of an astronomical object (a star or nebula) shows numerous bright or dark lines, each representing light of a certain wave length. If the object is stationary in relation to the earth, the lines are in the same places as in the spectrum of the sun. But if it is moving away from the earth, the lines shift toward the red end of the spectrum, because the receding motion "pulls...
...lines of glowing calcium, which are normally blue, are shifted into the green band of the spectrum. If they were bright enough to be seen in color, human eyes would actually see them as green instead of blue. This means that the motion of the nebula has lengthened the wave length of its blue light by more than 800 angstroms (.000003 in.). "It's a tremendous shift," says Dr. Hubble. "In our own stellar system, the average shift is only a fraction of one angstrom...
Some skeptical cosmologists do not admit that the redshift necessarily means that the nebulae are moving. Perhaps, they say, their light "gets tired," losing some of its energy during its tremendous journey through space. Since loss of energy would lengthen the wave length of light, a sufficient amount of fatigue would account for the shift toward the red in the spectrum...