This site uses cookies to improve your experience and the quality of our services. By using this site you agree to its use of cookies. More information Hide

Mont Valérien

Need a hotel nearby?

Sponsored links

Routes nearby

Places of Interest nearby

Matched content

Hotels nearby

Restaurants nearby

Sponsored links

Location type: Hill
Number of texts: 1
4 stars
Made by Dromos | Reference Copyright Free
Made by Dromos

From the Mont Valérien, Suresse, the French physicist Fizeau projected a lightbeam towards a mirror at Montmartre. Interposed in the path was a rapidly spinning cogweel with 720 precisely machined teeth. The beam would be exclipsed if the spin of the wheel was going faster. From this, Fiezau could calculate the speed of light as 315 400 km/sec. This was 1849!

Linked characteristics: Did you know...
Linked themes: Science

Classify this POI
Link to route
Add this POI to your routes nearby


Add comment

Sponsored links