Adriaan Daniël Fokker
Adriaan Daniël Fokker (born August 17, 1887 in Buitenzorg , Java , † September 24, 1972 in Beekbergen , Netherlands ) was a Dutch physicist and musician.
Fokker studied mining at the Technical University of Delft and physics at the University of Leiden with Hendrik Antoon Lorentz , where he received his doctorate in 1913. He continued his research with Albert Einstein (winter semester 1913/14 in Zurich), Ernest Rutherford and William Henry Bragg . In his doctorate (on Brownian motion of an electron in a radiation field) he discovered the Fokker-Planck equation together with Max Planck . Later he was curator of the Teyler Society in Haarlem (succeeding Lorentz) and professor in Leiden.
Fokker contributed to the special and general theory of relativity, for example the precession of a freely falling top in a gravitational field. Like Karl Schwarzschild and Hugo Tetrode, he also developed a forerunner of the telecontrol formulation of classical electrodynamics by John Archibald Wheeler and Richard Feynman in the 1940s (which referred to these authors).
In 1938 he and Dirk Coster made it possible for Lise Meitner to escape from Austria to the Netherlands.
He was a cousin of the famous aircraft manufacturer Anthony Fokker .
He composed a number of smaller pieces under the pseudonym Arie de Klein. He dealt with music theory, tone scales and built his own keyboards for the tone scale he preferred with a division into 31 tones, for which he also composed. He also campaigned for the purity of the Dutch language.
In 1949 he became a member of the Dutch Academy of Sciences (KNAW).
Works
-
New music with 31 tones . Düsseldorf: Publishing house of the Society for the Promotion of Systematic Music Knowledge eV 1966.
- English edition: New music with 31 notes . Bonn-Bad Godesberg: Publishing house for systematic music studies 1975.
- Meaning and mystery of Einstein's theory . Trondheim: Bruns 1963.
- Rudolf Rasch (Ed.): Selected musical compositions (1948 - 1972) . Utrecht: Diapason Pr. [U. a.], 1987. ISBN 90-70907-11-9
Individual evidence
- ↑ In the Annalen der Physik Vol. 44, 1914, p. 321 both published a work on Nordström's theory of gravitation
- ^ Past Members: AD Fokker (1889-1972). KNAW, accessed March 14, 2018 .
Web links
| personal data | |
|---|---|
| SURNAME | Fokker, Adriaan Daniël |
| ALTERNATIVE NAMES | Klein, Arie de (pseudonym) |
| BRIEF DESCRIPTION | Dutch physicist, musician and composer |
| DATE OF BIRTH | 17th August 1887 |
| PLACE OF BIRTH | Buitenzorg , Java |
| DATE OF DEATH | September 24, 1972 |
| Place of death | Beekbergen , Netherlands |