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Un effet Doppler-Fizeau méconnu : Roemer et la vitesse de la lumière / An unrecognized Doppler-Fizeau effect : Roemer and the speed of light
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SUMMARY. — Roemer proved that the speed of light is finite from the advances and retardations observed in the revolutions of a satellite of Jupiter. Since these variations are modifications of the apparent frequency of a periodic phenomenon viewed by a moving observer, Roemer thus came across the Doppler-Fizeau effect, even before it was clearly defined. In this paper, I show how Roemer's analysis can be harmonized with that well-known effect. I try to evaluate Romer as a precursor of Doppler and Fizeau.
Title: Un effet Doppler-Fizeau méconnu : Roemer et la vitesse de la lumière / An unrecognized Doppler-Fizeau effect : Roemer and the speed of light
Description:
SUMMARY.
— Roemer proved that the speed of light is finite from the advances and retardations observed in the revolutions of a satellite of Jupiter.
Since these variations are modifications of the apparent frequency of a periodic phenomenon viewed by a moving observer, Roemer thus came across the Doppler-Fizeau effect, even before it was clearly defined.
In this paper, I show how Roemer's analysis can be harmonized with that well-known effect.
I try to evaluate Romer as a precursor of Doppler and Fizeau.
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