Introduction
Weighing machines have long been used for measuring weights of various objects. The basic principle behind weight measurement is balancing of force due to gravity of an object with some known standard. You could easily find weight of small objects by using standard weighing balances having pair of pans i.e. one carrying the object to be weighed and the other is used to put loads of known weights until machine is balanced. This method cannot be applied on large scales involving heavy machinery, vehicles, or even humans. Another traditional method of weighing involves balancing force of an object due ...
