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Drakkit, dipole is right. The method you explained works only for very small speeds compared to that of light. F=ma is no longer accurate at very high speeds. You're not taking into account the the different inertial frames of reference. For instance you cannot use F=ma for an object...

Not really. You see, in e=mc^2 , e is the rest energy of a body and m is the rest mass of the body, which is different from the mass when the body is in motion. This is derived in special relativity as a result of the speed of light being the same for all inertial observers. You can research...

Hi everyone, I've always wondered what's that fuss for unifying general relativity and quantum mechanics all about. I stumbled upon things like string theory(or M theory) and even loop quantum gravity( which I think is as good as string theory despite rumors). My...