Roman balance, AD 350.
4 0 c m
 
34cm
actual image size: 26cm x 32cm

Roman balance, AD 350.

Richardson, Claire

© Science Museum / Science & Society Picture Library

Description

A Roman equal-arm balance made of bronze. Equal-arm balances of this type are the simplest and earliest method of weighing. It consists of a bar which has a pan suspended at either end. To use the balance, objects of unknown mas are put into one pan, and weights of known mas are put into the other pan until the two are balanced and the bar is level. This demonstrates the weight of the previously unknown mas as it must obviously be the same as the sum of the known weights. Taken from the Petrie Collection.
 

Artist

 

Image Ref.

10327329
 

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