Polarimeter
date: label: date made
content: ca 1864-1886
name: label: maker
content: Duboscq, Jules
notes: label: Description
content: A polarimeter measures the extent to which an optically-active substance rotates the plane of polarization of light passing through it. This example may have been shown at the Centennial Exhibition held in Philadelphia in 1876, and purchased by Joseph Henry, the physicist who served as founding Secretary of the Smithsonian Institution.
label: Description
content: Jules Duboscq apprenticed with Jean Baptiste François Soleil, married his daughter, and assumed control of the scientific side of the business following Soleil’s retirement in 1849. By 1864 he was using the inscription “J. Duboscq à Paris” as is found on this instrument. He remained in business until his death in 1886.
label: Location
content: Currently not on view
place: label: place made
content: France: Île-de-France, Paris
topic: label: Subject
content: Chemical Industry
label: Subject
content: Science & Scientific Instruments
label: Subject
content: Sugar
label: Subject
content: Optics
label: Subject
content: Worlds Fair
setName: label: See more items in
content: Medicine and Science: Physical Sciences
label: See more items in
content: Saccharimeters
label: See more items in
content: Measuring & Mapping
creditLine: label: Credit Line
content: Smithsonian Astrophysical Observatory
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.314955
label: catalog number
content: 314955
label: accession number
content: 212903
objectType: label: Object Name
content: polarimeter
physicalDescription: label: Physical Description
content: brass (overall material)
label: Measurements
content: overall: 14 in x 19 1/2 in; 35.56 cm x 49.53 cm
label: Measurements
content: overall: 18 7/8 in x 10 3/4 in x 21 1/2 in; 47.9425 cm x 27.305 cm x 54.61 cm