Calorimeter
date: label: date made
content: ca 1880
name: label: maker
content: Rowland, Henry A.
notes: label: Description
content: Soon after taking up his post as professor of physics at the new Johns Hopkins University, Henry A. Rowland designed and built this calorimeter to determine the mechanical equivalent of heat—that is, the amount of energy needed to raise the temperature of a certain amount of water by a certain amount. This work had been done before, most notably by the English physicist, James Prescott Joule, but Rowland believed he could do better.
label: Description
content: Ref: Henry A. Rowland, “On the Mechanical Equivalent of Heat, with Subsidiary Researches on the Variation of the Mercurial from the Air Thermometer, and On the Variation of the Specific Heat of Water,” <i>Proceedings of the American Academy of Arts and Sciences</i> 15 (1880): 75-200; reprinted in <i>The Physical Papers of Henry Augustus Rowland</i> (Baltimore, 1902), pp. 343-476; see Fig. 6, p. 425.
label: Location
content: Currently not on view
place: label: place made
content: United States: Maryland, Baltimore
setName: label: See more items in
content: Medicine and Science: Physical Sciences
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.318516
label: catalog number
content: 318516
label: accession number
content: 235069
objectType: label: Object Name
content: calorimeter
physicalDescription: label: Measurements
content: overall: 30 1/2 in x 17 3/4 in x 54 in; 77.47 cm x 45.085 cm x 137.16 cm