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{{Infobox scientist | |||
|name = Andreas von Ettingshausen | |||
|image = Andreas von Ettingshausen.jpg | |||
|image_size = 220px | |||
|caption = Andreas Freiherr von Ettingshausen (1796–1878) | |||
|birth_date = 25 November 1796 | |||
|birth_place = [[Heidelberg]], [[Electorate of the Palatinate]] | |||
|death_date = 25 May 1878 | |||
|death_place = [[Vienna]], [[Austria-Hungary]] | |||
|residence = Austria | |||
|citizenship = | |||
|nationality = German | |||
|ethnicity = | |||
|fields = [[Physicist]] and [[mathematician]] | |||
|workplaces = [[University of Innsbruck]]<br>[[University of Vienna]]<br>[[Vienna University of Technology|Vienna Polytechnic Institute]] | |||
|alma_mater = [[University of Vienna]] | |||
|doctoral_advisor = Ignaz Lindner | |||
|academic_advisors = | |||
|doctoral_students = [[Ernst Mach]]<br>[[Jožef Stefan]]<br>[[Viktor von Lang]] | |||
|notable_students = | |||
|known_for = [[Electric machine]]s | |||
|author_abbrev_bot = | |||
|author_abbrev_zoo = | |||
|influences = | |||
|influenced = | |||
|awards = | |||
|religion = | |||
|signature = <!--(filename only)--> | |||
|footnotes = | |||
}} | |||
'''Andreas Freiherr von Ettingshausen''' (25 November 1796 – 25 May 1878) was a [[Germans|German]] [[mathematician]] and [[physicist]]. | |||
Ettingshausen studied [[philosophy]] and [[jurisprudence]] in [[Vienna]]. In 1817, he joined the [[University of Vienna]] and taught mathematics and physics. In 1819 he became professor of physics at the [[University of Innsbruck]] and 1821 professor of higher mathematics at the [[University of Vienna]]. His lectures of that time marked a new era for the [[University of Vienna]], and they were published in 1827 in 2 volumes. In 1834 Ettingshausen became the chair of physics. | |||
Ettingshausen was the first to design an [[Electric machine|electromagnetic machine]], which used the electrical induction for power generation. He promoted [[optics]] and wrote a text book of physics. His method of lecturing was widely influential. In addition he wrote a book on [[combinatorial analysis]] (Vienna 1826). In 1866, he retired. | |||
Among his lasting impacts in mathematics is the introduction of the notation <math> \tbinom nk </math> for the [[binomial coefficient]], which is the [[coefficient]] of ''x<sup>k</sup>'' in the expansion of the [[binomial]] (''x''+1)<sup>''n''</sup> and, more generally, the number of ''k''-[[element (set theory)|element]] [[subsets]] of an ''n''-element [[set (mathematics)|set]].<ref>{{cite book |author=[[Nicholas J. Higham]] |title=Handbook of Writing for the Mathematical Sciences |publisher=[[Society for Industrial and Applied Mathematics]] |isbn=0-89871-420-6 |page=25}}</ref> | |||
== References == | |||
{{reflist}} | |||
== External links == | |||
* {{DNB portal|116585749|TYP=}} | |||
* [http://aeiou.iicm.tugraz.at/aeiou.encyclop.e/e864693.htm Biography of Ettingshausen] | |||
{{Authority control|VIAF=25357566}} | |||
{{Persondata <!-- Metadata: see [[Wikipedia:Persondata]]. --> | |||
| NAME = Ettingshausen, Andreas Von | |||
| ALTERNATIVE NAMES = | |||
| SHORT DESCRIPTION = Austrian-German mathematician | |||
| DATE OF BIRTH = 25 November 1796 | |||
| PLACE OF BIRTH = [[Heidelberg]], [[Electorate of the Palatinate]] | |||
| DATE OF DEATH = 25 May 1878 | |||
| PLACE OF DEATH = [[Vienna]], [[Austria]] | |||
}} | |||
{{DEFAULTSORT:Ettingshausen, Andreas Von}} | |||
[[Category:19th-century Austrian people]] | |||
[[Category:Austrian scientists]] | |||
[[Category:Austrian physicists]] | |||
[[Category:German scientists]] | |||
[[Category:German physicists]] | |||
[[Category:Austrian mathematicians]] | |||
[[Category:German mathematicians]] | |||
[[Category:University of Vienna alumni]] | |||
[[Category:University of Vienna faculty]] | |||
[[Category:University of Innsbruck faculty]] | |||
[[Category:German untitled nobility]] | |||
[[Category:Austrian people of German descent]] | |||
[[Category:People from Heidelberg]] | |||
[[Category:1796 births]] | |||
[[Category:1878 deaths]] |
Revision as of 06:25, 26 January 2014
Andreas Freiherr von Ettingshausen (25 November 1796 – 25 May 1878) was a German mathematician and physicist.
Ettingshausen studied philosophy and jurisprudence in Vienna. In 1817, he joined the University of Vienna and taught mathematics and physics. In 1819 he became professor of physics at the University of Innsbruck and 1821 professor of higher mathematics at the University of Vienna. His lectures of that time marked a new era for the University of Vienna, and they were published in 1827 in 2 volumes. In 1834 Ettingshausen became the chair of physics.
Ettingshausen was the first to design an electromagnetic machine, which used the electrical induction for power generation. He promoted optics and wrote a text book of physics. His method of lecturing was widely influential. In addition he wrote a book on combinatorial analysis (Vienna 1826). In 1866, he retired.
Among his lasting impacts in mathematics is the introduction of the notation for the binomial coefficient, which is the coefficient of xk in the expansion of the binomial (x+1)n and, more generally, the number of k-element subsets of an n-element set.[1]
References
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External links
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- 19th-century Austrian people
- Austrian scientists
- Austrian physicists
- German scientists
- German physicists
- Austrian mathematicians
- German mathematicians
- University of Vienna alumni
- University of Vienna faculty
- University of Innsbruck faculty
- German untitled nobility
- Austrian people of German descent
- People from Heidelberg
- 1796 births
- 1878 deaths