Modern Physics 2-2: Measuring the Speed of Light (Foucault Experiment)
Channel: Mark Ancliff
Date: 2016-07-25

These videos are taken from a lecture course on Modern Physics I taught at the Catholic University of Korea in Spring 2016.

This video describes the Foucault experiment -- an earth-bound experiment to measure the speed of light in the mid-1800s. Note that the figures used for the distance between the mirrors in this video are far too large. In the original experiment the distance was only 20 metres. A great paper by Michelson with lots of details on the experimental method is linked below.

Link to the slides used in this video: https://drive.google.com/file/d/0B8hDfVvVdCImeHJVZlE4RGwxZkE/view?usp=sharing

Experimental Determination of the Velocity of Light by A. A. Michelson:
http://www.gutenberg.org/files/11753/11753-h/11753-h.htm