Learn more physics!
what makes an electron or what is the ultimate source of all particles .
my second question is ' why the speed of light is independent of its observation from any inertial frame ' .
- madhav (age 17)
Electrons seem to be fundamental particles. As far as we can tell, they have no internal structure and so are not made up of tinier things. Electrons interact with photons, (light particles), and with neutrinos via the weak interactions (beta decay). Take a look at the Wikipedia article http://en.wikipedia.org/wiki/Talk:Quark
for some more information.
As far as the speed of light being independent of any inertial frame goes, it's just a fact of life. Many experiments have shown it to be true. It doesn't have to be that way, it just is. The Theory of Special Relativity is a theory that fits the facts. There is no a priori reason for it.
(published on 03/28/09)
Follow-up on this answer.