Word: pratt
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...project for which the Middletown, Conn., plant was first built has been abandoned; U.S. authorities no longer feel driven to solve the enormously difficult design problems of a nuclear-powered aircraft. But the Pratt & Whitney engineers who sweated over the complexities of the atom plane's engine are still determined to get some sort of nuclear reactor aloft. They are working for AEC now, and last week the commission allowed them to give a glimpse of their top-secret labs...
Radiation Cooling. Pratt & Whitney chose to work with these unpleasant fluids because building a nuclear engine for space requires a solution for one overriding problem: how to get rid of heat from the condenser. There is no air to cool it by convection; the only cooling comes from radiation, which increases sharply with temperature. If the working fluid were steam, an enormous condenser would be needed to radiate its low-grade heat. The lithium-potassium combination runs so hot that a fairly small condenser does...
...strange fluids demanded new alloys to contain them and new kinds of pumps and valves to move them around. Whole technologies had to be developed to make them behave properly. Pratt & Whitney scientists are confident that SNAP-50 will be well tested by 1965. When it finally takes to space, it will find plenty of important work: providing electricity for long-distance radar and communication, working the spacecraft's instruments and internal machinery, running an ion propulsion engine to change course while cruising through deep space...
...happens, we do not particularly admire Sunday but extended ourselves to give it a fair showing; your reviewer might occasionally try being equally fair. Brattle Theatre (Mrs. John W. Pratt...
...other girl was Sylvia Pratt, warm-spirited daughter of a noted Boston doctor, and Kemper married her soon after he graduated in 1935-132nd in a class of 275. A "sand-rat lieutenant," he was soon running a cram school for getting enlisted men into West Point, did so well that in 1939 the Point yanked him out of the infantry to teach history. He dutifully earned a Columbia master's degree in 1942 while itching to go to war. In its wisdom, the Army put him in G-2 with the prickly job of organizing U.S. historians...