Projection Polariscope
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B. F. Soleil presented a complex instrument to the Paris Academy of Sciences in 1839, boasting that it would produce all the experiments of diffraction and interference that might be included in a physics class of the period. This example seems to be a later form of that device. The \u00e2\u0080\u009cJ. & A. Duboscq \u00c3\u00a0 Paris\u00e2\u0080\u009d inscription refers to Jules Duboscq and his son-in-law, Albert, who were in business together in the years 1879-1882."}, {"label": "Description", "content": "Ref: P. A. Daguin, <i>Trait\u00c3\u00a9 \u00c3\u0089l\u00c3\u00a9mentaire de Physique</i> (Paris, 1862), vol. 4, p. 570."}, {"label": "Description", "content": "Notice in <i>Comptes Rendus de l\u00e2\u0080\u0099Acad\u00c3\u00a9mie des Sci\u00c3\u00a8nce</i> 8 (1839): 918."}, {"label": "Location", "content": "Currently not on view"}], "creditLine": [{"label": "Credit Line", "content": "U.S. Military Academy"}], "topic": [{"label": "subject", "content": "Science & Scientific Instruments"}], "place": [{"label": "place made", "content": "France: \u00c3\u008ele-de-France, Paris"}], "physicalDescription": [{"label": "Measurements", "content": "overall; polariscope: 16 1/8 in x 8 1/2 in x 3 1/8 in; 40.9575 cm x 21.59 cm x 7.9375 cm"}, {"label": "Measurements", "content": "overall; parts in box: 1 3/4 in x 3 1/2 in x 11 5/8 in; 4.445 cm x 8.89 cm x 29.5275 cm"}], "dataSource": [{"label": "Data Source", "content": "National Museum of American History"}], "objectType": [{"label": "Object Name", "content": "polariscope"}]}}, "url": "edanmdm:nmah_1184225", "hash": "2a5464632635a203b6d509c4a7bc7952d108d603", "docSignature": "6f9d67e409a3748ebf064b8a8150b131", "timestamp": 1663782461, "lastTimeUpdated": 1653680532, "title": "Projection Polariscope"}