3 ms·

See also the way the speed of light was originally measured: https://en.wikipedia.org/wiki/Fizeau%E2%80%93Foucault_apparatus https://en.wikipedia.org/wiki/Fizea

by dekhn 4y ago

See also the way the speed of light was originally measured: https://en.wikipedia.org/wiki/Fizeau%E2%80%93Foucault_apparatus https://en.wikipedia.org/wiki/Fizeau%E2%80%93Foucault_appara...