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29 juill. 1927 - A.A. Michaelson makes most accurate measure of speed of light

Description:

2.990 +/- .0002 x 10^8 m/s | [real is about 3x10^8 m/s] | Based on revolving mirrors at the tops of two California mountains

Ajouté au bande de temps:

AP US History

ByZoe
10 mai 2018
1
0
1288

Date:

29 juill. 1927
Maintenaint
~ Il y a 96 ans
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