Speed of Light

Mar 24.

Discussion on measurement of the speed of light by Louis Essen (National Physical Laboratory, UK) which led to a new international definition of the ‘metre’ in 1983, thus fixing the length of the metre in terms of the second and the speed of light.

Contact
Ray Essen, ray.essen@btinternet.com
Date
March 24, 20152015-03-24T11:39:00
Location
Matlock, United Kingdom
URL
http://www.matlockareau3a.org.uk/Groups/science.html