Word: beaming
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Dates: during 1920-1929
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...pounds per square inch, at present it is 20,000 pounds per square inch. "This improvement," he said, is due to the work of metallurgists and to the photoelastic determination of stress. This latter method, which is very complex, involves the rotation by mechanical stress, of a light beam in a plane of polarization. The effect is similar to that of double refraction. Straining the medium between the polarizers, which in our case is a celluloid model of the machine we are working on, increases the transmission through the second polarizer and a color scale is produced similar to that...
...earth by means of the torsion balance. Masses of density different from the surrounding rock, tend to deflect the direction of gravity and the change, though almost infinitesimal, from the standpoint of ordinary human experience, is capable of measurement by observing the amount of rotation of a light beam appropriately weighted and suspended on a thin platinum wire. Ore bodies themselves are rarely large enough to cause detectable variations in gravity, but large features such as heavier rock in cores of folds, dome-shaped masses of salt, or bleached cavernous ground can often be recognized by the anomalies caused...
Bright over the Gulf of Mexico blazed the sun. A small white boat, one-masted, drifted into the tidy harbor of Tarpon Springs, Fla. On a beam reaching from the mast to the flagstaff astern, hung sponges strung on cords six feet in length. It was a Monday. Tuesday was auction...
...disputed patents, of which Bethlehem claims to be sole licensee, cover the construction of what is known as the Gray beam. In 1904, one Henry Gray took out patents on this beam, which is rolled from one piece of steel instead of being made from several pieces riveted together. In 1926, U. S. Steel began the construction of a plant in Homestead, Pa., for the making of beams similar to the Gray beams. Thereupon Eugene Gifford Grace, Bethlehem president, announced that the Gray patents were still in force and that the making of Gray beams by a Bethlehem competitor constituted...
...other hand, cautious scholars who have no imagination have been troubled by the statement in II Samuel 21:19 where the killing of "Goliath the Gittite, the staff of whose spear was like a weaver's beam" is ascribed to one Elhanan. To smooth over the discrepancy, the passage is often made to read "the brother of Goliath the Gittite...