Word: purely
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Dates: during 1940-1949
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Although defense requirements have diverted scientists from pure research to more urgent practical needs, Charles F. Brooks, professor of Meteorology and director of the Blue Hill Observatory, states last night that science has received a general "stimulation that comes from cooperation in research...
This is at least as simple as the present method of making alumina from bauxite ore, which is by no means pure when mined. Its gross impurities, such as sand, are removed by crushing, washing, sifting. It is then dissolved in hot caustic soda or "lye," which does not dissolve the subtler impurities. When the hot lye cools in towering tanks, pure aluminum hydroxide separates from it and is ready to be baked and electrolyzed...
...small quantities the pure metal was used for photographers' flashlights, for fireworks, for star shells, as a scavenger to remove oxygen from other metals while molten, in organic synthesis. In compounds it was used medicinally for milk of magnesia and Epsom salts. But today the fact that magnesium is only two-thirds as heavy as aluminum and less than one-fourth as heavy as steel has brought it into great demand. And from almost everything except green leaves chemists are now extracting the pure metal-some 24,000 tons this year in the U.S., twice last year...
...Pure magnesium is soft and weak but alloyed with small amounts of aluminum (forming Dowmetal) its tensile strength and hardness increase six times. A bar of such a magnesium-base alloy is stronger than three times its weight in ordinary steel. It is not as strong as the same weight of an aluminum-base alloy (using .5% magnesium and 95% aluminum, making duralumin). Consequently airplane parts, where strength is important, are principally made of aluminum-base alloys, and Dowmetal is used primarily for engine castings, doors, hatches, floors, seats, brake assemblies, etc. Aluminum is usually used with some percentage...
...Ringside Maisie" is pure maize but this particular bushel of corn is pretty amusing fodder. Ann Sothern, the Brooklyn bonfire, wanders into a boxer's training camp and ends up by marrying his manager. Meanwhile all the old hokum about the lighter with a soul who goes blind, etc., etc., etc. occurs with Slapsie Maxie Rosenbloom and other pugilistic debris to provide an interesting background. A bit below the pan of the Maisie series, the show is still one of the best grade...