-
Period: to
Historical Speed of Light Measurements
-
Galileo
Method: Lanterns
Speed`fast` -
Romer Huygens
Method:Javian moon occulation
Speed:215 000 -
Bradley
Method:Aberration of light
Speed:301 000 -
Fizeau
Method: Spinning slotted wheel
Speed:315 300 -
Michelson
Method:Rotating mirror
Speed:299 910 -
Karolus/ Birge
Method: Kerr Cell shutter
Speed: 299 778 -
Pease/ Pearson
Method: Interfometer
Speed: 299 774 -
Essen/Gordon Smith
Method: Microwave cavity
Speed: 299 792 -
Evenson
Method: Laser method
Speed: 299 792.467 -
Woods/Shotton/ Rowley
Method: Laser Method
Speed: 299 792.4588 -
International
Method: Definition
Speed: 299 792.458