photo credits: David Peck Todd and William Thynne Lynn - PD US
country of citizenship:
language of expression: German
educated at: TU Wien, Czech Technical University in Prague, University of Vienna
occupation: mathematician, physicist, academic, astronomer, pedagogue, professor
Christian Andreas Doppler (; German: [ˈdɔplɐ]; 29 November 1803 – 17 March 1853) was an Austrian mathematician and physicist. He is celebrated for his principle — known as the Doppler effect — that the observed frequency of a wave depends on the relative speed of the source and the observer. He used this concept to explain the color of binary stars.
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