Back ফিজো-ফুকো যন্ত্র Bengali/Bangla Zahnradmethode German Experimento de Fizeau y Foucault Spanish Fizeaun–Foucault’n koe Finnish Appareil de Fizeau French מנגנון פיזו-פוקו HE Fizeau-módszer Hungarian Apparato di Fizeau-Foucault Italian 피조의 광속 측정 Korean Roda de Fizeau Portuguese
From 1848 to 1849, Hippolyte Fizeau used a toothed wheel apparatus to perform absolute measurements of the speed of light in air.
Subsequent experiments performed by Marie Alfred Cornu from 1872 to 1876 improved the methodology and made more accurate measurements.