Birth anniversary
Christian Doppler
Born on November 29, 1803
222
Years ago
223rd anniversary next
The 223rd anniversary falls on November 29, 2026, in 36 days.
Christian Andreas Doppler (German:; 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.
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