• Thumbnail for Hermann von Helmholtz
    Hermann Ludwig Ferdinand von Helmholtz (/ˈhɛlmhoʊlts/; German: [ˈhɛʁ.man vɔn ˈhɛlmˌhɔlts]; 31 August 1821 – 8 September 1894; "von" since 1883) was a German...
    36 KB (3,512 words) - 20:21, 28 December 2024
  • The Kelvin–Helmholtz instability (after Lord Kelvin and Hermann von Helmholtz) is a fluid instability that occurs when there is velocity shear in a single...
    11 KB (1,007 words) - 15:50, 25 October 2024
  • association is the German physiologist and physicist Hermann von Helmholtz. The annual budget of the Helmholtz Association amounts to €5.8 billion, of which...
    14 KB (1,178 words) - 06:12, 24 October 2024
  • Thumbnail for Helmholtz pitch notation
    chromatic scale. Fully described and normalized by the German scientist Hermann von Helmholtz, it uses a combination of upper and lower case letters (A to G)...
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  • Thumbnail for Thévenin's theorem
    theorem was independently derived in 1853 by the German scientist Hermann von Helmholtz and in 1883 by Léon Charles Thévenin (1857–1926), an electrical...
    23 KB (2,937 words) - 02:51, 30 November 2024
  • vector fields in three dimensions is discussed. It is named after Hermann von Helmholtz. For a vector field F ∈ C 1 ( V , R n ) {\displaystyle \mathbf {F}...
    44 KB (7,222 words) - 18:32, 12 December 2024
  • particle. In optics, the Helmholtz equation is the wave equation for the electric field. The equation is named after Hermann von Helmholtz, who studied it in...
    20 KB (2,982 words) - 06:07, 13 December 2024
  • 1882 paper entitled "Die Thermodynamik chemischer Vorgänge" by Hermann von Helmholtz. It describes how the Gibbs free energy, which was presented originally...
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  • Thumbnail for Helmholtz resonance
    resonance in a cavity, an effect named after the German physicist Hermann von Helmholtz. This type of resonance occurs when air is forced in and out of...
    20 KB (2,562 words) - 22:58, 3 December 2024
  • Thumbnail for Helmholtz coil
    A Helmholtz coil is a device for producing a region of nearly uniform magnetic field, named after the German physicist Hermann von Helmholtz. It consists...
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  • The Helmholtz machine (named after Hermann von Helmholtz and his concept of Helmholtz free energy) is a type of artificial neural network that can account...
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  • Thumbnail for Helmholtz free energy
    of pure substances. The concept of free energy was developed by Hermann von Helmholtz, a German physicist, and first presented in 1882 in a lecture called...
    23 KB (4,165 words) - 17:12, 20 October 2024
  • Thumbnail for Helmholtz–Kohlrausch effect
    The Helmholtz–Kohlrausch effect (after Hermann von Helmholtz and V. A. Kohlrausch) is a perceptual phenomenon where some hues, even when of the same lightness...
    9 KB (1,140 words) - 17:07, 5 December 2024
  • Thumbnail for Young–Helmholtz theory
    The Young–Helmholtz theory (based on the work of Thomas Young and Hermann von Helmholtz in the 19th century), also known as the trichromatic theory, is...
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  • Thumbnail for Anna von Helmholtz
    of scientific works. She was the second wife of the physicist, Hermann von Helmholtz. Brought up in a circle in which intelligence and character were...
    10 KB (734 words) - 22:26, 7 January 2024
  • Thumbnail for Heinrich Hertz
    Munich and Berlin, where he studied under Gustav R. Kirchhoff and Hermann von Helmholtz. In 1880, Hertz obtained his PhD from the University of Berlin,...
    40 KB (3,986 words) - 20:19, 28 December 2024
  • Thumbnail for Thomas Young (scientist)
    Knew Everything". His work influenced that of William Herschel, Hermann von Helmholtz, James Clerk Maxwell, and Albert Einstein. Young is credited with...
    40 KB (4,473 words) - 08:16, 1 October 2024
  • Thumbnail for Statue of Hermann von Helmholtz
    The statue of Hermann von Helmholtz by Ernst Herter is located at Humboldt University of Berlin in Berlin-Mitte, Germany. D. K. (6 October 2015). DK Eyewitness...
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  • Thumbnail for Kelvin–Helmholtz mechanism
    The Kelvin–Helmholtz mechanism is an astronomical process that occurs when the surface of a star or a planet cools. The cooling causes the internal pressure...
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  • Thumbnail for Sensations of Tone
    Sensations of Tone (category Hermann von Helmholtz)
    foundational work on music acoustics and the perception of sound by Hermann von Helmholtz. The first German edition was published in 1863. The English translation...
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  • Thumbnail for Johannes Peter Müller
    Müller mentored such distinguished scientists and physiologists as Hermann von Helmholtz, Emil du Bois-Reymond, Fritz Müller, Theodor Schwann, Friedrich...
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  • Thumbnail for Perfect fifth
    temperament tuning (700 cents) of 1.4983 (relative to the ideal 1.50). Hermann von Helmholtz uses the ratio 301:200 (708 cents) as an example of an imperfect...
    17 KB (1,786 words) - 22:19, 20 December 2024
  • in Königsberg, Prussia, the son of the physicist Hermann von Helmholtz and his first wife Olga, née von Velten. After studying in Stuttgart and Munich,...
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  • Hermann von Helmholtz (1821 – 1894), German physician and physicist who made significant contributions to several widely varied areas of modern science...
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  • Thumbnail for Julius von Mayer
    general principle of conservation of energy, definitively stated by Hermann von Helmholtz in 1847. Mayer derived a relation between specific heat at constant...
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  • Thumbnail for Double layer (surface science)
    (electrolyte), a common boundary (interface) among the two phases appears. Hermann von Helmholtz was the first to realize that charged electrodes immersed in electrolyte...
    29 KB (3,382 words) - 13:53, 20 October 2024
  • Helmholtz most commonly refers to Hermann von Helmholtz (1821-1894), German physician and physicist. Helmholtz or Helmholz may also refer to: Places named...
    710 bytes (115 words) - 02:44, 18 April 2024
  • Thumbnail for Ophthalmology
    factories in Germany, where he developed numerous optical instruments. Hermann von Helmholtz (1821–1894) was a polymath who made contributions to many fields...
    49 KB (5,384 words) - 16:02, 17 December 2024
  • article on the photoelectric effect by Philipp Lenard, who credited Hermann von Helmholtz for using the word in the area of electricity. However, the word...
    11 KB (1,153 words) - 13:45, 14 November 2024
  • Thumbnail for Physikalisch-Technische Bundesanstalt
    rejected their demands. Not until some years later were Werner von Siemens and Hermann von Helmholtz, the "founding fathers" of the PTR, able to make their vision...
    36 KB (4,235 words) - 08:48, 4 May 2024