A spring balance can be calibrated for the accurate measurement of mass in the location in which they are used, but many spring balances are marked right on their face "Not Legal for Trade" or words ...
You’re probably familiar with weighing things on a bathroom scale or kitchen scale, but do you know about a spring balance? Spring balances are simple yet clever tools that have been around for ...
A spring balance will stretch until the force from the spring is enough to balance the weight of the object, and the distance the spring in it has stretched indicates the force it is exerting to ...