In order to measure the mechanical properties of materials in compression, tension, bending or torsion, a universal testing machine is utilized. This article outlines the two different types ...

Volumetric measurements on CNC machines just got cheaper and easier. Laser interferometers use a laser beam aligned parallel to the axis direction being measured to indicate any linear displacement ...

Those of us in the business of psychological measurement use the terms reliability and validity a lot. You've probably seen those terms on the Psychology Today website (they appear thousands of times) ...