Word: sextant
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...Atlantic sea. His Son Richard went after him with a line, was followed by Son Harry in a boat, which capsized. With Hamrah partly disabled, the survivors hove to for two days. Then Charles Tillinghast Jr. took the helm, managed to remember how to lay a course by a sextant, brought the ketch limping in to Sydney ten days later...
Ranged in cases around the hall will be the Lindbergh equipment: parachutes, electrically heated clothes, sun helmets, mosquito netting, emergency food rations, landing flares, sextant, chronometers, goggles, stove, tent, cooking utensils, sledge, sea anchors, collapsible rubber boat with mast & sail, emergency outboard motor, fur boots, rifles, revolvers, ammunition, wireless sets, ship's log, maps, charts...
...Queen passed another ship the fog-eye, connected to a loudspeaker, snorted out the news. The outlying islands of the Bermuda group caused a clatter. At Bermuda, Commander Macneil transferred his equipment to a British boat for demonstration behind smoke screens. The Macneil fog-eye, like the Macneil thermoelectric sextant perfected last year (TIME, July 25), functions according to Commander Macneil's thesis that every object not at Absolute Zero (-459.4° F.) radiates heat-like infra-red rays. A two-foot, concave, silvered glass mirror in the fog-eye collects infra-red radiations of objects, focuses the rays...
...thermoelectric sextant, using infra-red rays, invented by Paul Humphrey Macneil. The infra-red rays are in the long-wave end of the electromagnetic spectrum. They are really heat waves, capable of penetrating clouds. The Macneil Sextant has a curved reflector that collects and potently focuses infra-red rays on a thermocouple, two pieces of metal which when heated even one-millionth of 1° give off a tiny flow of electricity. This flow is enormously amplified, measured by a galvanometer. When the curved reflector is pointed directly at the sun, the flow of electricity is greatest and the navigator...
Inventor Macneil began his pursuit of infra-red rays as an undergraduate at the University of Michigan. During the War he considered how to apply his researches to a nautical instrument, fixed on the sextant. Because no U. S. workmen could make the delicate apparatus required, he went to Holland. In February 1931 he guided the Mauretania across the Atlantic with his thermoelectric sextant, which was later adopted by the British Admiralty. Last week he announced he was ready to begin commercial production. A ship will need but one thermoelectric sextant which will cost about $2,000 instead...