HARDNESS, as recent correspondence in NATURE (vol. cvi., pp. 377, 440, 534, 599, 662, November, 192o–January, 1921) has shown, is a subject of interest to both the engineer and the physicist. Whatever ...

AURORA, Ill.--(BUSINESS WIRE)--Mitutoyo America Corporation is pleased to announce the release of the HR-600 Hardness Tester into its line of precision measuring instruments. The HR-600 Series ...