Word: carbon
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Dates: during 1930-1939
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Because Professor Allison's magneto-optical apparatus is his own contrivance, many a scientist doubted his discoveries. A few used similar machines, notably Professor Joseph Llewellyn McGhee of Emory University, Atlanta. Light from an electric spark is polarized by a Nicol prism, then sent through a cell containing carbon disulfide, a second cell containing a water solution of any substance to be tested; lastly through a second analyzing Nicol prism. Each of the two cells is surrounded by a coil of electric wire which becomes an electromagnet. The coils are so wound that the swings of the magnets...
...Ajax Northrup high frequency furnace which increases the heat energy by creating a current in the material to be melted. Using this principle, Engineer Chesnut made an experimental furnace of 1 cu. ft. capacity. The crucible was lathed out of a solid block of graphite, a form of carbon which conducts electricity well. To set up the resistance he packed the crucible in lampblack-an obstinate conductor of electricity. The current was carried through a copper coil. The outside of the furnace was heat-insulated, and a temperature gradient was established through the heat insulation to a water-cooled inductor...
...swift Curtiss-Hawk. Then, without warning, the ship dove out of line at 200 m. p. h., crashed its pilot to death. No satisfactory explanation of the tragedy was ever reached; but many onlookers, including David S. Ingalls, Assistant Secretary of the Navy for Aeronautics, suspected carbon monoxide. The same hazard-odorless, colorless CO gas from the engine exhaust, soaking into the pilot's blood until lack of oxygen overcomes his senses-may have caused many another unexplained crash. Secretary Ingalls soon put in motion a thorough study of the hazard by the Bureau of Medicine & Surgery...
...Awaiting Pilot Wedell was a note from Hawks: "Best of luck. Jimmy. See you in Mexico tonight." But Wedell had enough for one day. Meanwhile Pilot Hawks had flown only as far as Granada, Calif., near the Oregon border, where he landed in a field, nearly unconscious from carbon monoxide fumes...
...duty to forward the document to Secretary of State Henry Lewis Stimson, with carbon copy for Geneva? Or should we leave the diplomatists to their own devices in finding out who started the trouble in Manchuria...