- Georg Hartmann
Georg Hartmann (sometimes spelled Hartman;
1489 ,Eggolsheim nearForchheim ,Bavaria -April 9 1564 ,Nuremberg ) was a German engineer, instrument maker, author, printer, humanist, churchman, and astronomer.At the age of 17, he began studying theology and mathematics at the
University of Cologne . After finishing his studies, he travelled through Italy and finally settled in Nuremberg in1518 . There he constructedastrolabe s,globe s,sundials , quadrants and other instruments. Hartmann was possibly the first to discover the inclination ofEarth's magnetic field His two published works were "Perspectiva Communis" (Nuremberg, 1542), a reprint of John Peckham's 1292 book on optics and "Directorium" (Nuremberg, 1554), a book on astrology. He also left "Collectanea mathematica praeprimis gnomonicam spectania," 151 f. MS Vienna, Österreichische Nationalbibliothek, Quarto, Saec. 16 (1527-1528), an unpublished work on sundials and astrolabes that was translated by John Lamprey and published under the title of "Hartmann's Practika" in 2002. [MG Kivelson, CT Russell (1995), "Introduction to Space Physics", Cambridge University Press, ISBN 0-521-45714-9; p. 3-5] [ART Jonkers (2004), "Erdmagnetismus zur Zeit der Seefahrer", PHYSIK JOURNAL, 2004, p. 55-59; [http://www.liv.ac.uk/~jonkers/physikjournal.pdf fulltext] ] [John Lamprey (2002), "Hartmann's Practika" 'Making Sundials and Astrolabes by Compass and Rule', ISBN 1-931947-00-7 ] [John P. Lamprey, "An Examination of Two Groups of Georg Hartmann Sixteenth-century Astrolabes and the Tables Used in their Manufacture," ANNALS OF SCIENCE, 54, (1997), 111-142. 138. ] [H. G. Klemm, "Georg Hartmann aus Eggolsheim (1489-1564): Leben und Werk eines fräkischen Mathematiker und Ingenieurs" (Wissenschaftliche und künsterlische Beiträge, Ehrenburg-Gymnasium Forscheim, Heft 8), (Forscheim, 1990).] [Hans Gunther Klemm, "Magnetismus-Beobachtungen Bei Den Humanistischen Mathematikern Georg Hartmann und Georg Joachim Rheticus," (Erlangen, 1994).]
References
Wikimedia Foundation. 2010.
