
Sujet
A hydrometer, an instrument that measures the specific gravity
Légende
Engraving depicting a hydrometer, an instrument that measures the specific gravity (relative density) of liquids—the ratio of the density of the liquid to the density of water. Dated 18th Century
Date
18e siècle
Crédit
Photo12/Ann Ronan Picture Library
Notre référence
ARP23A16_015
Licence
Droits gérés
Format disponible
60,0Mo (3,8Mo) / 23,9cm x 62,8cm / 2827 x 7417 (300dpi)