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dc.contributor.author Jensen, William B.
dc.coverage.spatial Cincinnati (Ohio)
dc.date.accessioned 2014-11-24T19:31:43Z
dc.date.available 2014-11-24T19:31:43Z
dc.date.created 2014-11-24
dc.date.issued 2014-11-24
dc.identifier.uri http://hdl.handle.net/2374.UC/734048
dc.description The observation that a stick partially plunged into a pool of clear water looks as if it is bent (figure 1) probably goes back to time immemorial. The more sophisticated interpretation of this observation as being due to the bending of light rays on passing from one medium (air) to another (water), as well as the law governing the angles which the rays make in the two mediums relative to a normal drawn perpendicular to the surface separating them (figure 2), has been discovered several times throughout history – first by the Arab, Ibn Sahi, in 984 AD, then by Thomas Harriot in 1602, then by Willebrord Snellius or Snell (figure 3) in 1621, and lastly by René Descartes (figure 4) in 1637. en_US
dc.format.mimetype application/pdf
dc.language.iso en_US
dc.relation.ispartof Oesper Collections in the History of Chemistry
dc.relation.ispartofseries Oesper Museum Booklets on the History of Chemical Apparatus
dc.rights Attribution-NonCommercial-NoDerivs 3.0 United States *
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/us/ *
dc.subject.lcsh Chemistry--History en_US
dc.title Refractometers en_US
dc.title.alternative Oesper Museum Booklets on the History of Chemical Apparatus, No. 3, 2014
dc.type Pamphlet
dc.publisher.digital University of Cincinnati. Oesper Collections in the History of Chemistry
dc.publisher.OLinstitution University of Cincinnati en_US
dc.extent 40 pages

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