Christian Doppler
Christian Doppler was born on November 29, 1803. See ranking, bio blurb, and everyone else born that day.
About Christian Doppler
Christian Andreas Doppler (; German: [ˈdɔplɐ] ; 29 November 1803 – 17 March 1853) was an Austrian mathematician and physicist. He formulated the principle – now known as the Doppler effect – that the observed frequency of a wave depends on the relative speed of the source and the observer.