Originally posted by Alpha Centauri
Colour doesn't truly exist, technically.If you look at a white surface then cast a shadow on it, the shadowed area is no longer white. If you have a red, blue and green shirt in a closet, then turn all the lights off, they all become the same colour. Why? Because "colour" is only determined by what kinds of light that surface can take in.
On topic:
No, it doesn't make a sound. It can only become sound if we hear it, that's why it's called sound. If not, it's just random energy existing somewhere.
-AC
yes but that random energy does exist wether we pick it up or not, if there were ears there to experience it the data of that random energy would be converted into sound.