Name/Title
Hope's ApparatusEntry/Object ID
2013.3.42Description
Designed to measure the expansion (density) of water at different temperature. It is pictured as No. 427 (p. 25) "Appareil pour de Maximum de densit‚ de l'eau" by M.M. Breton Frères (Catalogue, Paris, 1859). It consists essentially of a large glass cylinder (15 x 3¬ inches) on a footed base. About midway of the height, the cylinder is encircled by a copper through. Both above and below the cylinder is pierced by holes. Ice is placed in the copper trough and thermometers are inserted in the holes in the glass cylinder. It can be shown by experiment that the maximum density of water occurs at 4 C.
Hope (1766-1844) was an English chemist born in Edinburg.Collection
Moosnick Museum - Scientific Apparatus