Suppose you are in a rocket, moving very fast towards a photon that is coming directly your way. Newtonian mechanics would say that the photon would be coming at you at **more than the speed of light** (the sum of the velocity of the rocket and the photon). But we know from **relativity** that it is impossible for anyone to perceive light faster than speed of light.
What would happen to compensate for this extra velocity? Would time slow down or speed up? What would an external observer perceive of this situation if he was watching it unfold?
In: Physics
Blue shift.
Besides the covered relativity section, light is also a wave. The frequency of the waves hitting you changes the color perceived. If you’re approaching the source, things become bluer, or redder if going away. You know how trains sound different approaching vs leaving? Same thing but using sound waves.
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