Roman balance and weights, AD 350.

Richardson, Claire

Roman balance and weights, AD 350.
3 4 c m
40cm
actual image size: 32cm x 26cm

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.

Image Details

Artist
 
Image Ref.
 
10327328

© Science Museum / Science & Society Picture Library

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