SPACE TECHNOLOGY
U.s. Analysis Reveals Sputnik 4 Fabrication Techniques
Cambridge, Mass. - Metallurgical analysis of fragments from the Soviet Sputnik 4 satellite which fell in Manitowoc, Wis., Sept. 5 revealed that they were composed of a conventional, medi um-carbon steel, according to officials at the Smithsonian Astrophysical Observatory here.
By Warren C. Wetmore8 min