Cool How To Measure Speed Of Light Ideas. (the ones that reflect off of the splitter going this direction have no effect on the experiment) then it hits the rotating mirror, reflecting toward some part of the lens. Web foucault's determination of the speed of light figure 1:
C = 299, 792, 458 meters/second. The setup as used by fizeau consists of a beam of light directed at a mirror 8 kilometres (5 mi) away. You can calculate this answer using the speed of light formula:
