Today (April 15, 1874) is the birthday of Nobel Prize-winning German physicist Johannes Stark, who discovered the Stark effect and the Doppler Effect.
Johannes Stark
was born on April 15, 1874, in Germany. He also attended the Bareth Gymnasium
(high school) in the German Empire Schickenhof and the school in Regensburg. He
studied physics, mathematics, chemistry and crystallography at the University
of Munich. He then graduated in 1897. He received his doctorate in the field of
research on certain physical and optical properties of heat. Became a volunteer
lecturer at the University of Gottingen. In 1906 he became a professor at
Hanover. In 1908 RWTH became a professor at Aachen University. Until 1922 he
worked in the physics departments of several universities, including Creatvolt
University.
There are
electric currents in gases, spectroscopic analysis, and chemical values. He
said his spectroscopic deals with the relationship between structure, structure
and the spectrum of chemical molecules. Doppler Effect detection in canal beams
and splitting of spectral lines in electrical fields. In 1902 his book
Electricity in Gases was published. This was followed by research on chemical
molecules in the analysis of radiation molecules and electronic spectroscopy.
He authored a
book, Chemical Atomic Electricity for Chemical Evaluation (Die Electricized
Game of Thrones). Stark founded Jackboop der Reactivity and Electronic
Reactivity and Electronics. In 1910 he received the Bombard Carter Prize from the
Vienna Academy of Sciences and in 1914 the Cottonton Academy of Sciences
Wallpooch Prize. He was awarded the 1919 Nobel Prize in Physics for his
discovery of the spectral line splitting (Stark effect) in the electric field
and his discovery of the Doppler Effect on canal rays.
The Stark effect is
the presence of a luminous substance in an energetic electric field whose
optical properties vary. This is also a part of spectral analysis. Similar to
the Seaman effect. The magnetic field is used in response to the electric field
during the seaman effect. The Doppler Effect is a change in the frequency of
the wave for the observer moving according to the source of the wave. It is usually
hearing the approach, passing and mitigation of the viewer when a vehicle
raises a horn or sound. Compared to the published frequency, the frequency
obtained during access is higher, the frequency received during transit is
equal, and the frequency received after passing is lower.
In recent years,
Ebenstad, near his hometown of Transtein in Upper Bavaria, studied the effects
of light diffraction in an irregular electric field. German physicist Johannes
Stark passed away on June 21, 1957, at the age of 83 in Transstein, West
Germany.
Source By:
Wikipedia
Information:
Ramesh, Assistant Professor of Physics, Nehru Memorial College, Puthanampatti,
Trichy.
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