Ludwig Zehnder
Encyclopedia
Ludwig Louis Albert Zehnder (4 May 1854, Illnau – 24 March 1949, Oberhofen am Thunersee
), Swiss
physicist, inventor of an interferometer (See Mach–Zehnder interferometer).
Zehnder was a student of Wilhelm Röntgen, professor
of physics at the universities of Freiburg
and Basle
. He produced the first pictures of the human skeleton by shining x-ray
s through the human body.
Oberhofen am Thunersee
Oberhofen am Thunersee is a municipality in the administrative district of Thun in the canton of Bern in Switzerland.-Geography:Oberhofen has an area, , of . Of this area, or 20.2% is used for agricultural purposes, while or 52.6% is forested...
), Swiss
Switzerland
Switzerland name of one of the Swiss cantons. ; ; ; or ), in its full name the Swiss Confederation , is a federal republic consisting of 26 cantons, with Bern as the seat of the federal authorities. The country is situated in Western Europe,Or Central Europe depending on the definition....
physicist, inventor of an interferometer (See Mach–Zehnder interferometer).
Zehnder was a student of Wilhelm Röntgen, professor
Professor
A professor is a scholarly teacher; the precise meaning of the term varies by country. Literally, professor derives from Latin as a "person who professes" being usually an expert in arts or sciences; a teacher of high rank...
of physics at the universities of Freiburg
University of Freiburg
The University of Freiburg , sometimes referred to in English as the Albert Ludwig University of Freiburg, is a public research university located in Freiburg im Breisgau, Baden-Württemberg, Germany.The university was founded in 1457 by the Habsburg dynasty as the...
and Basle
University of Basel
The University of Basel is located in Basel, Switzerland, and is considered to be one of leading universities in the country...
. He produced the first pictures of the human skeleton by shining x-ray
X-ray
X-radiation is a form of electromagnetic radiation. X-rays have a wavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz and energies in the range 120 eV to 120 keV. They are shorter in wavelength than UV rays and longer than gamma...
s through the human body.