Internet, http://www.dean.usma.edu/math/people/rickey/dms/DeptHeads/Hassler.html,
2005-01-05
Information trouvée : born 7 October 1770, Aarau, Switzerland 1803-1805: worked with Johann Tralles on the
topological survey of Switzerland 1805: emigrated to the United States of America
February 14, 1807 to December 31, 1809: Acting Professor of Mathematics, USMA (the
professorship was not created until the law of April 29, 1812) 1810-1813: Professor
of Natural Philosophy and Mathematics, Union College, Schenectady, New York 1815-1817:
Superintendent of the United States Coast Survey 1830-1843: Head of the United States
Standards of Weights and Measures 1832-1843: Superintendent of the United States Coast
Survey died 20 November 1843 in Philadelphia, age 73
Internet, https://www.wikidata.org/wiki/Q120552, 2021-04-28
Information trouvée : Ferdinand Rudolph Hassler (1770-10-07/1843-11-20), mathématicien et géomètre suisse-américain
Report upon the standards of the liquid capacity measures of the system of uniform
standards for the United States : with description of a new original barometer, and
of the balance for adjusting the half bushels by their weight of distilled water /
By F.R. Hassler. Washington: T. Allen, printer, 1842