everything in this universe in relative.
so is velocity.
so they stack.
and please refer carefully to frame of reference.
get this idea clearly in ur head while working on relative velocity.
however, the speed of light is absolute.
it will no change no matter what's the relative velocity.

This post has been edited by KeNGZ: Sep 16 2010, 10:28 PM

holy shit?
wow OMG
read it through already.
I've read about the different fine structure constant observed lately.
which could mean law of physics is not necessarily the same at every point in the universe.
and now I'd just learnt speed of light is not absolute?

so Einstein's special relativity postulates on light still hold true?
and does our different observers in different inertial frames of reference record different speed of light?

looks like things I've learnt are quite out-of-date.

thank you very much by the way for letting me know my mistake.

and this VSL,
where and when do we get to learn bout it?
or it is beyond the university syllabus?