{"product_id":"23191-brewster-david-two-original-cdv-portraits","title":"Brewster, David. (1781 - 1868) Two Original CDV Portraits","description":"\u003cdiv style=\"\"\u003eTwo Carte de visite portraits of the eminent British scientist, inventor, author, and academic administrator.  One by John Moffat of Edinburgh, the other by Mayall of London. A few scattered spots, small trim to upper right corner of Moffat mount, else fine.  2.5 x 4 inches (6.4 x 10.5 cm).\u003c\/div\u003e\u003cdiv style=\"\"\u003e\u003cbr\u003e\u003c\/div\u003e\u003cdiv style=\"\"\u003eIn science he is principally remembered for his experimental work in \u003cspan style=\"background-color: white;\"\u003ephysical optics\u003c\/span\u003e, mostly concerned with the study of the \u003cspan style=\"background-color: white;\"\u003epolarization\u003c\/span\u003e of light and including the discovery of \u003cspan style=\"background-color: white;\"\u003eBrewster's angle\u003c\/span\u003e. He studied the \u003cspan style=\"background-color: white;\"\u003ebirefringence\u003c\/span\u003e of crystals under compression and discovered \u003cspan style=\"background-color: white;\"\u003ephotoelasticity\u003c\/span\u003e,thereby creating the field of \u003cspan style=\"background-color: white;\"\u003eoptical mineralogy\u003c\/span\u003e.\u003cspan style=\"font-size: 10.5px;\"\u003e \u003c\/span\u003eFor this work, \u003cspan style=\"background-color: white;\"\u003eWilliam Whewell\u003c\/span\u003e dubbed him the \"father of modern experimental optics\" and \"the \u003cspan style=\"background-color: white;\"\u003eJohannes Kepler\u003c\/span\u003e of optics.\"\u003cbr\u003e\n\u003c\/div\u003e","brand":"Schubertiade Music and Arts","offers":[{"title":"Default Title","offer_id":46093838483615,"sku":"23191","price":150.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0512\/4826\/7423\/files\/Brewster_2C_David_CDV_Portraits_23191a.jpg?v=1722190716","url":"https:\/\/www.schubertiademusic.com\/products\/23191-brewster-david-two-original-cdv-portraits","provider":"Schubertiade Music and Arts","version":"1.0","type":"link"}