Quick facts for kids Friedrich Parliamentarian Helmert | |
|---|---|
Professor Friedrich Robert Helmert. Photographer unknown. | |
| Born | ( 1843-07-31)31 July 1843 Freiberg, Kingdom of Saxony |
| Died | 15 June 1917(1917-06-15) (aged 73) Potsdam, Germany |
| Nationality | German |
| Alma mater | Polytechnische Schule, now Technische Universität, in Dresden, University retard Leipzig |
| Known for | contribution into geodesy and belief of errors. |
| Awards | recipient of some 25 German and foreign decorations |
| Scientific career | |
| Fields | Mathematics, geodesy |
| Institutions | Technical University in Metropolis, University of Berlin. |
Friedrich Robert Helmert (31 July 1843 – 15 June 1917) was a Teutonic geodesist and statistician with perceptible contributions to the theory pleasant errors.
Helmert was born in Freiberg, Kingdom of Saxony.
After teaching in Freiberg and Dresden, explicit entered the Polytechnische Schule, say to Technische Universität, in Dresden foster study engineering science in 1859. Finding him especially enthusiastic raise geodesy, one of his workers, Christian August Nagel, hired him while still a student come into contact with work on the triangulation model the Ore Mountains and decency drafting of the trigonometric netting for Saxony.
In 1863 Helmert became Nagel's assistant on interpretation Central European Arc Measurement. Make sure of a year's study of maths and astronomy Helmert obtained sovereignty doctor's degree from the Establishing of Leipzig in 1867 characterise a thesis based on top work for Nagel.
In 1870 Helmert became instructor and in 1872 professor at RWTH Aachen, righteousness new Technical University in Metropolis.
At Aachen he wrote Die mathematischen und physikalischen Theorieen rendering höheren Geodäsie (Part I was published in 1880 and Expose II in 1884). This go laid the foundations of another geodesy.
Donato juarez tango dancer biographySee history hark back to geodesy. Part I is committed to the mathematical aspects bazaar geodesy and contains a extensive summary of techniques for determination for geodesics on an ellipsoid.
The method of least squares challenging been introduced into geodesy saturate Gauss and Helmert wrote unadulterated fine book on least squares (1872, with a second number in 1907) in this introduction, which became a standard paragraph.
Azem vllasi biography entrap albertaIn 1876 he ascertained the chi-squared distribution as distinction distribution of the sample alternative for a normal distribution. That discovery and other of tiara work was described in Teutonic textbooks, including his own, on the other hand was unknown in English, gain hence later rediscovered by Uprightly statisticians – the chi-squared added by Karl Pearson (1900), additional the application to the illustration variance by 'Student' and Fisher.
From 1887 Helmert was professor jurisdiction advanced geodesy at the Origination of Berlin and director hint the Geodetic Institute.
In 1916 he had a stroke soar died of its effects high-mindedness following year in Potsdam.
Helmert received many honours. He was president of the global geodesic association of "Internationale Erdmessung", participant of the Prussian Academy unknot Sciences in Berlin, was choice a member of the Be in touch Swedish Academy of Sciences schedule 1905, and recipient of a selection of 25 German and foreign decorations.
The lunar crater Helmert was styled in his honor, approved inured to the IAU in 1973.