Date:1600 Experimenter:Galileo Method:Laterns Speed{c][km/s]:"Fast"

Galileo

Sep 1, 1600

Method: Laterns
Speed{c][km/s]:"Fast"

HISTORICAL SPEED OF LIGHT MEASUREMENTS

Period: Sep 1, 1600 to Sep 19, 1983

Romer/Huygens

Sep 19, 1679

Method:Jovian moon occiltation
Speed[c][km/s]: 215,000

Bradley

Sep 6, 1729

Method:Aberration of Light
Speed[c][km/s]:301,000

Fizeau

Oct 6, 1849

Method: Spinning slotted wheel
Speed [c][km/s]:315,300

Michelson

Oct 13, 1879

Method:Rotating mirror
Speed [c][km/s]:299,910

Rosa

Sep 9, 1889

Method:Capacities method
Speed[c][km/s]:300,000

Comstock

Sep 9, 1890

Method:18 stair pairs
Speed {c][km/s]:300,560

Perot/Fabry

Nov 22, 1898

Method:lectrometric method
Speed [c][km/s]:299,730

Rosa/Dorsey

Oct 26, 1906

Method:Electrical method
Speed [c][km/s]:299,803

Mercier

Sep 2, 1923

Method:Electrical measurement
Speed[c][km/s]:299,700

Michelson/Birge

Dec 21, 1926

Method:Interferometer
Speed[c][km/s]:299,789

Karolus/Mittelstaedt

Dec 8, 1928

Method:Keer cell shutter
Speed[c][km/s]:299,778

Pease/Pearson

Nov 13, 1932

Method:Interfermometer
Speed[c][km/s]:299,774

Essen/Gordon-Smith

Jan 4, 1947

Method:Microwave cavity
Speed[c][km/s]:299,792

Froome

Feb 5, 1958

Method: Interferometer
Speed[c][km/s]:299,792.50

Evenson

Jun 10, 1973

Method:Later method
Speed[c][km/s]:299,792.467

Woods/shotton/Rowley

May 16, 1978

Method:Laser method
Speed[c][km/s]:299,792.4588

International

May 12, 1983

Method:Definition
Speed[c][km/s]:299,792.458