Speed of Light
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.
- Ray Essen, firstname.lastname@example.org
- March 24, 20152015-03-24T11:39:00
- Matlock, United Kingdom