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Helmholtz's polyphonic siren, Hunterian Museum, Glasgow. Hermann Ludwig Ferdinand von Helmholtz (/ ˈ h ɛ l m h oʊ l t s /; German: [ˈhɛʁ.man vɔn ˈhɛlmˌhɔlts]; 31 August 1821 – 8 September 1894; "von" since 1883) was a German physicist and physician who made significant contributions in several scientific fields, particularly hydrodynamic stability. [2]
The biography of Helmholtz was published in 1902 and 1903. He also wrote a biography of C. G. J. Jacobi. [2] Königsberger's own research was primarily on elliptic functions and differential equations. He worked closely with Lazarus Fuchs, a childhood friend. [2]
The concept of free energy was developed by Hermann von Helmholtz, a German physicist, and first presented in 1882 in a lecture called "On the thermodynamics of chemical processes". [1] From the German word Arbeit (work), the International Union of Pure and Applied Chemistry (IUPAC) recommends the symbol A and the name Helmholtz energy. [2]
Hermann von Helmholtz (1821–1894) Explained hearing and vision. Biomechanics: Christian Wilhelm Braune (1831–1892) First to describe the methodology of human gait (walking). Bioelectromagnetics: Luigi Galvani (1737–1798) First to discover animal electricity through a series of experiments in 1780. Cardiovascular physiology: Ibn al-Nafis ...
The namesake of the association is the German physiologist and physicist Hermann von Helmholtz. [2] The annual budget of the Helmholtz Association amounts to €5.8 billion, of which about 70% is raised from public funds. The remaining 30% of the budget is acquired by the 19 individual Helmholtz Centres in the form of contract funding.
1857: Helmholtz resonance by Hermann von Helmholtz [433] 1859: Spectrometer by Robert Bunsen and Gustav Kirchhoff [434] 1861: First telephone transmitter by Johann Philipp Reis; [435] [13] he also coined the term "telephone" [13] 1864–1875: Centrifuge by brothers Alexander and Antonin Prandtl from Munich [436] 1865: Concept of entropy by ...
The first person to propose the existence of efferent copies was the German physician and physicist Hermann von Helmholtz in the middle of the 19th century. He argued that the brain needed to create an efference copy for the motor commands that controlled eye muscles so as to aid the brain's determining the location of an object relative to the ...
The Helmholtz equation has a variety of applications in physics and other sciences, including the wave equation, the diffusion equation, and the Schrödinger equation for a free particle. In optics, the Helmholtz equation is the wave equation for the electric field. [1] The equation is named after Hermann von Helmholtz, who studied it in 1860. [2]