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1792 in science
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==Exploration and survey== * May β [[George Vancouver]] explores [[Puget Sound]] and becomes the first [[Europe]]an to see [[Mount Rainier]]. * May 11 β [[Robert Gray's Columbia River expedition]]: Captain [[Robert Gray (sea captain)|Robert Gray]] on the ''[[Columbia Rediviva]]'' becomes the first white man to enter the [[Columbia River]]. * The second great [[Ramsden theodolite]] constructed by [[Jesse Ramsden]] for the [[Principal Triangulation of Great Britain]].<ref>{{cite web|title=Ramsden's three foot geodetic theodolite, 1792|url=http://www.sciencemuseum.org.uk/objects/surveying/1876-1203.aspx|publisher=[[Science Museum (London)]]|accessdate=2011-11-20|archive-url=https://web.archive.org/web/20110209045510/http://www.sciencemuseum.org.uk/objects/surveying/1876-1203.aspx|archive-date=2011-02-09|url-status=dead}}</ref>
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