Scales and balances are instruments which reflect an object's mass — it's matter independent of gravity, often represented by grams, kilograms, or pounds (mass); or its weight — the object's mass ...
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Galileo hardness tester restoration and calibration
In this video, a vintage 50-year-old Rockwell hardness tester, weighing over 80kg (176lbs), is restored. The machine employs ...
The U.S. National Institute of Standards and Technology (NIST) has completed significant upgrades to two key instruments serving what the agency calls "critical national needs". The devices measure ...
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