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

Sep 1, 1600

Galileo

Method: Laterns
Speed{c][km/s]:"Fast"
Period: Sep 1, 1600 to Sep 19, 1983

HISTORICAL SPEED OF LIGHT MEASUREMENTS
Sep 19, 1679

Romer/Huygens

Method:Jovian moon occiltation
Speed[c][km/s]: 215,000
Sep 6, 1729

Bradley

Method:Aberration of Light
Speed[c][km/s]:301,000
Oct 6, 1849

Fizeau

Method: Spinning slotted wheel
Speed [c][km/s]:315,300
Oct 13, 1879

Michelson

Method:Rotating mirror
Speed [c][km/s]:299,910
Sep 9, 1889

Rosa

Method:Capacities method
Speed[c][km/s]:300,000
Sep 9, 1890

Comstock

Method:18 stair pairs
Speed {c][km/s]:300,560
Nov 22, 1898

Perot/Fabry

Method:lectrometric method
Speed [c][km/s]:299,730
Oct 26, 1906

Rosa/Dorsey

Method:Electrical method
Speed [c][km/s]:299,803
Sep 2, 1923

Mercier

Method:Electrical measurement
Speed[c][km/s]:299,700
Dec 21, 1926

Michelson/Birge

Method:Interferometer
Speed[c][km/s]:299,789
Dec 8, 1928

Karolus/Mittelstaedt

Method:Keer cell shutter
Speed[c][km/s]:299,778
Nov 13, 1932

Pease/Pearson

Method:Interfermometer
Speed[c][km/s]:299,774
Jan 4, 1947

Essen/Gordon-Smith

Method:Microwave cavity
Speed[c][km/s]:299,792
Feb 5, 1958

Froome

Method: Interferometer
Speed[c][km/s]:299,792.50
Jun 10, 1973

Evenson

Method:Later method
Speed[c][km/s]:299,792.467
May 16, 1978

Woods/shotton/Rowley

Method:Laser method
Speed[c][km/s]:299,792.4588
May 12, 1983

International

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