|MadSci Network: Physics|
I know that the fundamental priciple behind special relativity is that the speed of light will remain constant to all observers, no matter how they are moving relative to the light. To allow for this, time must therefore be "slowed down" as one's speed increases. The example most books use to explain this is a scacecraft moving at (or near to)the speed of light emitting light from the front. By classical physics, the light should hover near the front of the craft; but by relativity, the craft's relative time is slowed, allowing the light to move at the correct speed. What I don't understand is how the principle applies if the light is shone in any other direction. If the light is shone backwards, for instance, the craft's relative time should speed up to nullify the relative speed of the light.
Re: Understanding some (to my mind) problems in special relativity.
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