L8 space and time

special theory of relativity

nothing can travel faster than c, E = mc²

if you observe something moving near light speed

its time slows down, its length contracts in the direction of motion, and its mass increases

whether or not two events are simultaneous depends on

your frame of reference

relative motion

must specify where we are observing from e.g plane matching Earth’s rotation

laws of nature and speed of light are

absolute