Wilhelm Carl Werner Otto Fritz Franz Wien, Nobel Prize in Physics, 1911 (1864 - 1928) MP

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Birthdate:
Birthplace: Fischhausen (Rybaki), East Prussia (Primorsk, Russia)
Death: Died in Munich, Upper Bavaria, Bayern, Germany
Occupation: Physicist; Nobel Prize in Physics, 1911
Managed by: Yigal Burstein / יגאל בורשטיין
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About Wilhelm Carl Werner Otto Fritz Franz Wien, Nobel Prize in Physics, 1911

Wilhelm Carl Werner Otto Fritz Franz Wien (13 January 1864 – 30 August 1928) was a German physicist who, in 1893, used theories about heat and electromagnetism to deduce Wien's displacement law, which calculates the emission of a blackbody at any temperature from the emission at any one reference temperature.

He also formulated an expression for the black-body radiation which is correct in the photon-gas limit. His arguments were based on the notion of adiabatic invariance, and were instrumental for the formulation of quantum mechanics. Wien received the 1911 Nobel Prize for his work on heat radiation.

Early years

Wien was born at Gaffken near Fischhausen (Rybaki), Province of Prussia (now Primorsk, Russia) as the son of landowner Carl Wien. In 1866, his family moved to Drachstein near Rastenburg (Rastembork).

In 1879, Wien went to school in Rastenburg and from 1880-1882 he attended the city school of Heidelberg. In 1882 he attended the University of Göttingen and the University of Berlin. From 1883-85, he worked in the laboratory of Hermann von Helmholtz and, in 1886, he received his Ph.D. with a thesis on the diffraction of light upon metals and on the influence of various materials upon the color of refracted light. From 1896 to 1899, Wien lectured at the prestigious RWTH Aachen University. In 1900 he went to the University of Würzburg and became successor of Wilhelm Conrad Röntgen.

Career

In 1896 Wien empirically determined a distribution law of blackbody radiation, later named after him: Wien's law. Max Planck, who was a colleague of Wien's, did not believe in empirical laws, so using electromagnetism and thermodynamics, he proposed a theoretical basis for Wien's law, which became the Wien-Planck law. However, Wien's law was only valid at high frequencies, and underestimated the radiancy at low frequencies. Planck corrected the theory and proposed what is now called Planck's law, which led to the development of quantum theory. However, Wien's other empirical formulation \lambda_{\mathrm{max}} T = constant, called Wien's displacement law, is still very useful, as it relates the peak wavelength emitted by a body (λmax), to the temperature of the body (T). In 1900 (following the work of George Frederick Charles Searle), he assumed that the entire mass of matter is of electromagnetic origin and proposed the formula m=(4/3)E/c^2 for the relation between electromagnetic mass and electromagnetic energy.

While studying streams of ionized gas, Wien, in 1898, identified a positive particle equal in mass to the hydrogen atom. Wien, with this work, laid the foundation of mass spectrometry. J. J. Thomson refined Wien's apparatus and conducted further experiments in 1913 then, after work by Ernest Rutherford in 1919, Wien's particle was accepted and named the proton.

In 1911, Wien was awarded the Nobel Prize in Physics "for his discoveries regarding the laws governing the radiation of heat."

Wien was a member of the Academies of Sciences of Berlin, Göttingen, Vienna, Stockholm, Christiania and Washington, and an Honorary member of the Physical Society of Frankfurt-on-Main.

In 1898 he married Luise Mehler of Aix-la-Chapelle. They had four children. He died in Munich on August 30, 1928.

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Wilhelm Wien, Nobel Prize in Physics, 1911's Timeline

1864
January 13, 1864
Fischhausen (Rybaki), East Prussia (Primorsk, Russia)
1898
1898
Age 33
Eix-la-Chapelle
1906
September 10, 1906
Age 42
Würzburg
1928
August 30, 1928
Age 64
Munich, Upper Bavaria, Bayern, Germany
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