Quote:
Originally posted by BentnotTwisted
duckznutz,
The flashlight thing is explained by light frequency shift. If I am moving quickly towards a red light it will shift up the frequency to green, blue and eventually out of the visible spectrum. If I am moving away from a light source at a high velocity it will shift down in frequency. If you are a trekkie you can see the effect out the windows when the ships are travelling at warp. Stars are stretched out over the full visible spectrum of light from red to blue, very cool.
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Yes I understand the red-shift and the doppler effect . . . but that doesb't explain that the SPEED of light moving away from me = the speed of light BUT if I am on a train moving away from the station at 100mph then the speed of light from my torch is moving away from the station at the speed of light PLUS 100mph . . is this right? . . . anyone?