Word: oscillograph
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Dates: during 1930-1939
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...candlepower electric light glaring on her masthead. Every 15 seconds her fog whistle emitted a mournful blast. The beacon signal, sounded by a motor-driven key controlled by clockwork, went out continuously instead of on the fair weather schedule of 15 min. every hour. The submarine oscillograph, synchronized with the beacon, throbbed cyclic warnings through the water...
...when the loop is parallel to the direction of the signals, weakest when it is at right angles. Since sound travels much more slowly through water than radio waves through air, the distance of the lightship can be computed by noting the time between reception of the beacon and oscillograph signals...
...liner drew close it steered slightly to port of the lightship and speed was reduced to 16 knots. The oscillograph detector was not used to find the distance, but the liner's position was computed by cross-bearings from shore radio stations. Few minutes before the crash, while the beacon indicated the lightship to be three degrees off the starboard bow, the signals were suddenly lost. The oscillograph detector went dead also. Then the lightship's fog whistle was heard. Every officer on the Olympic's bow agreed the sound was off the starboard bow. To play...
...heart disease; in Schenectady, N. Y. Head of General Electric's standardizing laboratory since 1896, he became engineer-in-charge when it was merged in 1919 with the consulting laboratory which the late great Dr. Charles Proteus Steinmetz founded. Under Dr. Robinson's direction were brought out the oscillograph, the mercury arc rectifier, the photophone...