Word: alloy
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...weight 30% by means of lighter mountings, braces, etc. Up to now every aluminum engine required either a ferrous liner or a chromium coating for cylinder bores; both were expensive to make and troublesome to process. G.M. believes it has solved the problem by finding a wear-resistant aluminum alloy that can be cast in the same fashion as iron...
...completely buried implant, used by Dr. Stanley Behrman of Cornell University Medical College. The Behrman method, aided by modern physics, uses tiny (onequarter inch long) cobalt-platinum alloy magnets, the most powerful of their size ever developed. Inserted into the upper or lower jaw, the magnets attract other small magnets placed in the overlying denture to keep them in place. The mesh-covered magnets are strong enough to last the life of the denture-user...
...came a new boss. Frank B. Rackley, 33, whose blacksmith father had encouraged him to read and believe Horatio Alger. While working as a $13-a-week office boy in Pittsburgh, Rackley studied metallurgy at night school, was named Western manager for U.S. Steel's stainless and alloy division when still...
...Gorman joint. But he has high hopes for it. Moving parts are metal against metal, lubricated by body fluids, so no foreign material is in moving contact with human tissue (which has caused trouble in some earlier plastic and metal restorations). Made of Stellite (a chromium-cobalt alloy), the joint should outlast the life of the recipient, with no corrosion...
...diameter) reaches a maximum speed of 18,000 m.p.h., Drs. Carl Gazley Jr. and David J. Masson point out that the temperature of its skin should not rise much above 2,000°F. Although most common metals either melt or soften at this temperature, alloys recently developed for the turbine blades of jet engines are capable of withstanding it. So should an alloy-constructed satellite. A returning satellite could not only show the subtle effects of cosmic rays but could also bring back with it pictures of what the earth looks like from the doorstep of space...