Word: marquardt
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Hydrogen Cooling. These apparent limitations dampened interest in further ramjet development work until late last year, when Marquardt Corp. scientists convincingly demonstrated a practical method of maintaining combustion in a supersonic flow of air. Using hydrogen, which has a low ignition temperature, burns rapidly and provides high thrust, they kept an experimental scramjet burning in air moving as fast as 7,000 m.p.h. By redesigning their engine's inlet to allow it to gulp air at supersonic speeds, they were also able to eliminate the excessive temperatures and pressures. And they proved that useful thrust could be produced...
Some experts predict that Germany's inland waterways will gradually lose ground to trucking and pipelines. Shipping Expert Walter Marquardt, deputy head of the Transport Ministry's inland shipping section, questions the gloomy forecasts, noting that "traffic predictions have almost always proved too low." Even if inland shipping's share of commerce fails to grow proportionately, says Marquardt, it is still bound to increase in absolute terms as growing factories-in Germany and elsewhere-require ever greater amounts of the ores and bulk raw materials that the slow-chugging barges still carry so economically...
...drugs on unborn children. But how to study a developing fetus in utero reacting to drugs passed through its mother's bloodstream? Last week such research was given a hopeful boost when the National Institute of Child Health and Human Development awarded a $48,500 contract to the Marquardt Corp., of Van Nuys, Calif., to probe the effects of drugs on embryonic opossums...
...chosen because it is a unique animal. Born only twelve days after conception, it spends the next 60 to 70 days in its mother's pouch, firmly and continuously attached to her breast. During that period, it grows and behaves much as a human embryo in normal gestation. Marquardt researchers are already well acquainted with the opossum, having learned how to detach the tiny fetus from the mother's breast to feed it artificially. Mixing drugs with the food, the researchers should be able to observe firsthand their effects on a growing fetus...
...Against his financial aide's advice, Rockefeller put up $500,000. After a tough decade, Reaction grew strong enough to merge with Thiokol Chemical Corp. last year, and Rockefeller got Thiokol stock that is now worth $4,200,000. In 1950, Rockefeller put $202,000 into low-flying Marquardt Aircraft Co., a pioneer in ramjet propulsion; his interest zoomed to $5,200,000 after Marquardt started making ram-jets for the Bomarc missile. But the fastest rise of all was in Itek. Two years ago Rockefeller, a camera bug, invested $279,000 in Itek Corp., which had plans...