Out of Mellon Institute of Industrial Research in Pittsburgh last week rolled a strange new material. It looked and felt like a sheet of steel, but its surface did not shine like steel. It was a surface soft as felt. A casual observer would have guessed it was steel covered with felt. Dr. Alden William Coffman would have pointed out that a cross section showed no line of demarcation between felt and steel. Then Dr. Coffman, who developed it, would have explained that it was felt-coated steel, but that the felt was not merely a covering, was an integral part of...
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