Title

A hydrometer, an instrument that measures the specific gravity

Caption

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

18th century

Credit line

Photo12/Ann Ronan Picture Library

Reference

ARP23A16_015

License type

Rights managed

Available size

60,0Mb (3,8Mb) / 9,4in x 24,7in / 2827 x 7417 (300dpi)

Keywords

18th Century Engraving Engraved Illustration Illustrated Hydrometer Measurement Measure Gravity Density Liquid Liquids Ratio Dense Water Science History of Science Scientific History of Physics Physics 18th Century