Rob wrote: >>> You'd better cite your source and / or reasoning, as ~3*10^8m/s =is= >>> the >>> accepted constant speed of light in vacuum. >> It's deeper than that. The "second" and the "meter" are both defined in terms of wavelengths of light, which (as a consequence) fixes the speed of light _by definition_, at _exactly_ *299 792 458 m s^-1. [Waaaaay OT!] *