An ugly, misshapen blob of glassified soil could rewrite the story of humanity’s technological heritage, suggesting that we ...

Traditionally, copper metallurgy is not thought to have emerged until millennia later, during the Chalcolithic period. Thus ...

An International Symposium, Pittsburgh, Pennsylvania, April 27–May 1, 1959. Edited by George R. St. Pierre. Part 1: Pp. xiv + 644. 22.50 dollars. Part 2: Pp. xiv ...

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Keywords powder metallurgy, metal powders, self-lubricating bearings, manufacturing process, heat treatment, precision sizing, oil impregnation, industrial products, structural properties, mass ...