National Physical Laboratory- Science and Technology in Wartime, Teddington, Middlesex, England, UK, 1944 In the Metallurgy Department at the National Physical Laboratory, a scientist prepares to use an X-ray to test a steel plate. The apparatus used has been recently developed to precisely determine the stresses in metals caused by welding, heat treatment, or during the fabrication process.

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Keywords: 2, information, military, ministry, piemags, war, world, ww2