Specific Gravity Collection

Hydrometers and Hygrometers C017 / 3433
Plate from 18th century encyclopedia showing illustrations of hydrometers and hygrometers. A hydrometer is an instrument used to measure the specific gravity (or relative density)

18th century engraving by T Jefferys of Bradford's Hydrostatic Instrument. The hydrostatic instrument used for measuring the specific gravity and therefore the purity, of a coin

Hydrometer, artwork
Hydrometer. Computer artwork of a hydrometer floating in a liquid. A hydrometer is an instrument that uses buoyancy to measure the density of a liquid

Hydrometer floating in a liquid. A hydrometer is an instrument that uses buoyancy to measure the density of a liquid. It consists of a weighted tube that floats vertically in the liquid

Scientific equipment, historical artwork
Scientific equipment. Historical artwork of a range of equipment used for scientific measurements and drawings. At centre left is a hydrostatic balance

All Professionally Made to Order for Quick Shipping