1849: Fizeau (toothed wheels and mirrors): 42,219 geographical miles ..... =313,000 km in 1 sec.
1854: Foucault (2 rotating mirrors etc.): 40,160 geographical miles ..... =298,000 » - » -
1874: Alfred Cornu (à la ..300,400 » - » -
Fizeau) .....300,330 » - » -
1902: Perrotin (id.) ....299,900 (+80 m.) » -

NAPOLEON. "THOUGHTS"
PARIS, 1913. MINIATURE LIBRARY NO. 14
(Landesbibliothek)
"The cannon killed feudalism. Ink will kill the present social order
(p. 43)...
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- - - In every battle, there comes a moment when even the bravest soldiers,
after the greatest exertion, feel the desire to flee; this panic is caused by a lack of trust in their own courage; a trivial incident, some pretext, is enough to restore this trust: the highest art
consists in creating them" (p. 79-80).