Lichtsnelheid?
 

Light has a constant speed in vacuum of space, and a different constant speed in water, etc.
So a light coming from a car standing still is same speed as light from a car that is moving,
because also in the atmosphere lightspeed is a constant .
But, if an observer is standing still to a lightsource or in motion to a lightsource,
speed of light is not the same, while a constant in the atmosphere?

Of niet?

Sneller dan de snelheid van het licht.
Boek van João Magueijo.
Absoluut eens lezen.