Fun fact: Cherenkov light is emitted when particles move faster than the speed of light in a given medium. It can be seen in nuclear reactors in blue. Tho is of

Fun fact: Cherenkov light is emitted when particles move faster than the speed of light in a given medium. It can be seen in nuclear reactors in blue. Tho is of course, in line with current theory, only possible because the speed of light in a medium is lower than the speed of light in vacuum, which particles cannot reach.