Translation:On the Principle of Doppler



Notes by the author (1915)

 * From the reprint in: Physikalische Zeitschrift (1915), 16, 381-385 Online

The anniversary of the principle of relativity causes the editors to present an almost forgotten predecessor to the readers of the Physikalische Ztschrift. Indeed, in this note from the Nachr. d. Kgl. Ges. d. Wiss. zu Göttingen, meeting of 3. January 1887, the fundamental transformation of the optical differential equation was clearly formulated. Only the supplements (indicated by brackets) were added to this reprint by the author. 

Ueber das Doppler’sche Princip