1667

Galileo Galilei

Covered Lanterns

333.5

1676

Ole Roemer

Jupiter's moon

220 000

1849

Armand Fizeau

Rotating Wheel

315 000

1862

Leon Foucault

Rotating Mirror

298 000

1879

Albert Michelson

Rotating Mirror

299 910

1926

Albert Michelson

Rotating Mirror(interferometer)

299 798

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Christiaan Huygens

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