a numerical expression of the hardness of a metal as determined by a test (Vickers test) in which the sample is indented under a known pressure by the point of a diamond and the surface area of the indentation is divided into the amount of pressure applied.
Why Veterans Day And The Number 11 Are Tied TogetherNovember 11th is the 315th day of the year (except on leap years). It’s also Veterans Day, a federal holiday honoring all military veterans.
Origin of Vickers number
after Vickers Armstrong Ltd., British steel firm
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019