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Polarization Apparatus
From the collection of National Museum of American History. Free to download, adapt and use — no permission needed.
About this work
Brewster's Angle, named for the Scottish physicist, David Brewster, is the angle of incidence at which light with a particular polarization is perfectly transmitted through a transparent surface. This device determines Brewster's angle for different subtances. The U.S. Military Academy purchased it in 1829, probably from Lerebours in Paris.
National Museum of American History’s own descriptionSubjects
Credit linePolarization Apparatus. around 1830. National Museum of American History, United States Military Academy. CC0.