Word: exhaustingly
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Dates: during 1930-1939
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...that of an ordinary house radiator, which is situated in an enclosed room. Cold air will be blown into this room, heated by the radiator, and then distributed to all parts of the chapel by a large number of branching pipes. The draught will be forced by a huge exhaust fan, which has been placed in the tower and will draw the air up through the building and out through the tower. There is also a smaller radiator in another enclosed room, under the choir, for use in heating that part of the building when it is unnecessary to heat...
...noise is comparatively slight. Last week Eastern Air Transport, whose Condor biplanes are powered by geared Conqueror engines, adopted a muffler which was said to reduce engine noise by 70% without loss of power. The muffler, developed by the company's Chief Engineer Ralph G. Lockwood, consists of an exhaust manifold more than twice the size of the regular type, inside which is a stationary screw which causes the gases to spin about and travel 48 ft. before being released...
...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 and the Navy's Bureau of Aeronautics...
...found, as expected, that cabin planes were free of the CO menace, as exhaust gas cannot enter the cabin in quantities. Worst offenders were observation and bombing planes, both open cockpit types. Two observation pilots showed an absorption of 15% CO in the blood. A pilot and observer in a bombing plane showed 10% absorption. Such amounts of the gas, if not retained too long, might cause nothing serious; but frequent subjection over long periods of time might sap the pilot's strength and alertness. Exhaust stacks were redesigned to lead the gases down and away from the cockpit...
...noticeably weak. While their friends in Russia are overcoming the inertia of centuries of aristocratic incompetency, they hurl insults and repeat the old catchwords which have a strong emotional glamor, but, when they stand alone, no definite meaning. When they are permitted to harangue bystanders, Communist orators quickly exhaust their supply on invectives, and only the arrival of the police can make their demonstrations interesting even to the most bitter opponents of capitalism...