Christian Doppler

Died aged c. 50

Christian Andreas Doppler /ˈdɒplər/ (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 colour of binary stars.

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Commemorated on 1 plaque

Geburtshaus des Physikers Christian Doppler Entdecker des nach ihm benannten astrophysischen Prinzips Geb 29. November 1803 - gest 17. März 1853 Zu seinem hundertsten Geburtsfeste die Gesellschaft für Salzburger Landeskunde

House opposite Landestheater between Markardplatz and Schwarzstraße, Salzburg, Austria where they was born (1803)