Objekt 25
Two hydrometers in box
Description
The hydrometer is a device for determining the specific gravity of liquids, based on Archimedes' principle. It consists of a glass body provided with a scale. This is immersed to different depths in liquids of different densities due to hydrostatic buoyancy. The scale thus enables the density to be read.
Object description
around 1800
Glass bubble filled with mercury, wooden rod, box made of wood and paper
Purchase 1822 by Prof. Peter Merian
Deposit Institute of Physics of the University of Basel, Phys. 72.
Inv. 1986.421.1. and 2.