Word: bjorksten
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Dates: during 1957-1957
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Bubbly Aluminum. The first practical "foamed" aluminum for extra-light weight has been produced under U.S. Air Force contract by Bjorksten Research Laboratories at Madison, Wis. Filled with bubbles made by hydrogen gas, the new metal is one-tenth as heavy as aluminum sheet, can be sawed, nailed, bolted or glued to other objects. Immediate military use: as lightweight parts in jet planes. Potential civilian use: as a fireproof, rot-resistant substitute for lumber in residential house construction...
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