Hydrometer
notes: label: Description
content: Glass hydrometer with mercury ballast, and paper label marked “Actinometer for silver solution” and “Tp. 60 degrees F.” An actinometer measures the intensity of radiation. In this form, designed for photographic use, the scale indicates the number of grains of silver nitrate to ounce of water at a particular light level.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
creditLine: label: Credit Line
content: United States Military Academy
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.316445
label: catalog number
content: 316445
label: accession number
content: 223721
objectType: label: Object Name
content: hydrometer
physicalDescription: label: Measurements
content: overall: 5 1/2 in; 13.97 cm
label: Measurements
content: overall: 5 3/8 in x 5/8 in; 13.6525 cm x 1.5875 cm