Vsauce: What is the Speed of Dark?
July 31st, 2014We all know quite a lot about the speed of light: it’s something like 186,000 miles per second, the speed is a constant, … I guess that’s about all I know. Anyway, what about the speed of dark? Michael of Vsauce takes a look at the speed of dark; or, more specifically, the nature of shadows and how they differ from physical objects like photons.
