Search results
Results from the WOW.Com Content Network
Robert Wilhelm Eberhard Bunsen (German:; 30 March 1811 [a] – 16 August 1899) was a German chemist. He investigated emission spectra of heated elements, and discovered caesium (in 1860) and rubidium (in 1861) with the physicist Gustav Kirchhoff. [11] The Bunsen–Kirchhoff Award for spectroscopy is named after Bunsen and Kirchhoff.
Spectroscope of Kirchhoff and Bunsen. The systematic attribution of spectra to chemical elements began in the 1860s with the work of German physicists Robert Bunsen and Gustav Kirchhoff, [30] who found that Fraunhofer lines correspond to emission spectral lines observed in laboratory light sources. This laid way for spectrochemical analysis in ...
In 1860, Robert Bunsen and Gustav Kirchhoff discovered the metallic element caesium in the mineral water from the Durkheim springs. For its seven mineral springs , Dürkheim was given the epithet Solbad (" brine bath"), and in 1904 it was given leave to change its name to Bad Dürkheim ( Bad is German for "bath", and a place may only bear this ...
This category is for historic maps showing all or part of Europe. See subcategories for smaller areas. "Historic maps" means maps made over seventy (70) years ago.
[1] [2] He also coined the term black body in 1860. [3] Several different sets of concepts are named "Kirchhoff's laws" after him, which include Kirchhoff's circuit laws, Kirchhoff's law of thermal radiation, and Kirchhoff's law of thermochemistry. The Bunsen–Kirchhoff Award for spectroscopy is named after Kirchhoff and his colleague, Robert ...
This list includes European countries and regions that were part of the Roman Empire, or that were given Latin place names in historical references.As a large portion of the latter were only created during the Middle Ages, often based on scholarly etiology, this is not to be confused with a list of the actual names modern regions and settlements bore during the classical era.
In the late 1850s, Anastasios eventually participated in the lab experiments of Bunsen and Kirchhoff. He also worked in the chemical industry assisting factories in Moscow and Frankfort. [8] [9] Heliocentrism was on the list of forbidden books until 1758. It was not acceptable as a physical fact until the middle to late part of the 19th century.
This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (September 2020) (Learn how and when to remove this message) The list of the largest German cities provides an overview of the most populous cities that were located in contemporary German territory at the time of ...