*scratches head - perplexed* Thanks rogue 49 . . but I still dont get it . . . maybe need to check a few text books or something . . . . . the speed of light is 'c' you say . . . but relative to what? everything? If you shine two torches towards each other are you saying that the photons 'know' that there is another photon coming straight at it . . and so it slows down to half its normal speed to ensure their closing speed does not exceed 'c'? DOH! I dont get it! No need to reply rogue49 . . its my stupidity not yours . . I will go read up on it. Thanks
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