What German theoretical physicist has a chemistry rule named after him?
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Grimm–Sommerfeld rule In chemistry, the Grimm–Sommerfeld rule predicts that binary compounds with covalent character that have an average of 4 electrons per atom will have structures where both atoms are tetrahedrally coordinated (e.g. have the wurtzite structure). Examples are silicon carbide, the III-V semiconductors indium phosphide and gallium arsenide, the II-VI semiconductors, cadmium sulfide, cadmium selenide.
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Arnold Sommerfeld Arnold Johannes Wilhelm Sommerfeld, {'1': ", '2': ", '3': 'ForMemRS', '4': "} (] ; 5 December 1868 – 26 April 1951) was a German theoretical physicist who pioneered developments in atomic and quantum physics, and also educated and mentored a large number of students for the new era of theoretical physics. He served as PhD supervisor for many Nobel Prize winners in physics and chemistry (only J. J. Thomson's record of mentorship is comparable to his).
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L'Hôpital's rule In mathematics, and more specifically in calculus, L'Hôpital's rule or L'Hospital's rule (] ) uses derivatives to help evaluate limits involving indeterminate forms. Application (or repeated application) of the rule often converts an indeterminate form to an expression that can be evaluated by substitution, allowing easier evaluation of the limit. The rule is named after the 17th-century French mathematician Guillaume de l'Hôpital. Although the contribution of the rule is often attributed to L'Hôpital, the theorem was first introduced to L'Hôpital in 1694 by the Swiss mathematician Johann Bernoulli.
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Max Speter Max Speter (1 April 1883 – 30 June 1942) was a German chemist and science historian.
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Gerhard Hoffmann Gerhard Hoffmann (4 August 1880 – 18 June 1945) was a German nuclear physicist. During World War II, he contributed to the German nuclear energy project, also known as the Uranium Club.
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Harald Friedrich Harald Friedrich (19 May 1947 – 29 January 2017) was a German physicist specializing in theoretical atomic physics.
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Arndt–Schulz rule Arndt–Schulz rule or Schulz' law is a claimed law concerning the effects of pharmaca or poisons in various concentrations. It states that:
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Georg Stetter Georg Carl Stetter (23 December 1895 – 14 July 1988) was an Austrian-German nuclear physicist. Stetter was Director of the Second Physics Institute of the University of Vienna. He was a principal member of the German nuclear energy project, also known as the Uranium Club. In the latter years of World War II, he was also the Director of the Institute for Neutron Research. After the war, he was dismissed from his university positions, and he then became involved in dust protection research. After his dismissal was overturned, he became Director of the First Physics Institute of the University of Vienna, and he began research on aerosols. In 1962, Stetter became a full Member of the Austrian Academy of Sciences. In that same year, the Academy established their Commission for Clean Air, and Stetter served as its chairman until 1985.
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Maxwell relations Maxwell's relations are a set of equations in thermodynamics which are derivable from the symmetry of second derivatives and from the definitions of the thermodynamic potentials. These relations are named for the nineteenth-century physicist James Clerk Maxwell.
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Van der Waals surface The van der Waals surface of a molecule is an abstract representation or model of that molecule, illustrating where, in very rough terms, a surface might reside for the molecule based on the hard cutoffs of van der Waals radii for individual atoms, and it represents a surface through which the molecule might be conceived as interacting with other molecules. Also referred to as a "van der Waals envelope," the van der Waals surface is named for Johannes Diderik van der Waals, a Dutch theoretical physicist and thermodynamicist who developed theory to provide a liquid-gas equation of state that accounted for the non-zero volume of atoms and molecules, and on their exhibiting an attractive force when they interacted (theoretical constructions that also bear his name). van der Waals surfaces are therefore a tool used in the abstract representations of molecules, whether accessed, as they were originally, via hand calculation, or via physical wood/plastic models, or now digitally, via computational chemistry software. Practically speaking, CPK models, developed by and named for Robert Corey, Linus Pauling, and Walter Koltun, were the first widely used physical molecular models based on van der Waals radii, and allowed broad pedagogical and research use of a model showing the van der Waals surfaces of molecules.
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Prandtl number The Prandtl number (Pr) or Prandtl group is a dimensionless number, named after the German physicist Ludwig Prandtl, defined as the ratio of momentum diffusivity to thermal diffusivity. That is, the Prandtl number is given as:
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General Leibniz rule In calculus, the general Leibniz rule, named after Gottfried Wilhelm Leibniz, generalizes the product rule (which is also known as "Leibniz's rule"). It states that if formula_1 and formula_2 are formula_3-times differentiable functions, then the product formula_4 is also formula_3-times differentiable and its formula_3th derivative is given by
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Theodor Grotthuss Freiherr Christian Johann Dietrich Theodor von Grotthuss (January 20, 1785 – March 26, 1822) was a German chemist known for establishing the first theory of electrolysis in 1806 and formulating the first law of photochemistry in 1817. His theory of electrolysis is considered the first description of the so-called Grotthuss mechanism.
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Karl Bechert Karl Richard Bechert (August 23, 1901 in Nuremberg, Middle Franconia – April 1, 1981 in Weilmünster-Möttau, Hesse) was a German theoretical physicist and political leader. As a scientist, he made contributions in atomic physics.
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Carl Wagner Carl Wilhelm Wagner (May 25, 1901 – December 10, 1977) was a German Physical chemist. He is best known for his pioneering work on Solid-state chemistry , where his work on oxidation rate theory, counter diffusion of ions and defect chemistry led to a better understanding of how reactions take place at the atomic level. His life and achievements were honoured in a Solid State Ionics symposium commemorating his 100th birthday in 2001, where he was described as the Father of Solid State Chemistry.
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Hans Finkelstein Hans Finkelstein (17 May 1885, Leipzig, Germany - December 1938 ) was a German chemist. He is particularly known for the Finkelstein reaction which was named after him.
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Gerhart Jander Gerhart Jander (26 October 1892 – 8 December 1961) was a German inorganic chemist. His book, now normally only called "Jander-Blasius", on analytical chemistry is still used in German universities. His involvement in the chemical weapon research and close relation to the NSDAP have been unrecovered by recent research.
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Heinz-Jürgen Kluge Heinz-Jürgen Kluge, known as Jürgen Kluge (born 25 April 1941), is a physicist probably best known for the development of ion-storage devices and methods for accurate measurements of nuclear masses.
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Carl Ramsauer Carl Wilhelm Ramsauer (February 6, 1879 in Osternburg, Oldenburg – December 24, 1955 in Berlin) was an internationally notable professor of physics and research physicist, famous for the discovery of the Ramsauer–Townsend effect. He pioneered the field of electron and proton collisions with gas molecules.
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Gerhard Kraft Gerhard Kraft (born 1941 in Heidelberg, Germany) is a German physicist, best known for introducing heavy ion cancer therapy in Europe.
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Kopp's law Kopp's law can refer to either of two relationships discovered by the German chemist Hermann Franz Moritz Kopp (1817–1892).
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Heinrich G. F. Schröder Heinrich Georg Friedrich Schröder (28 September 1810 – 12 May 1885) was a German natural scientist (physicist, chemist), mathematician and educator.