Okay, lets assume special relativity is right.
If you have a spaceship approaching the speed of light, its mass converts to energy.
If the mass converts to energy, then that means that the mass is 0.
According to E=mc^2, E is the energy, m is the mass, and c is the speed; so if mass is 0 then the energy is 0.
Thus the spaceship has no mass and no energy.
How can one miss this simple contradiction?

This post was edited by AEtheric on Jan 15 2009 09:31pm

Oh, it's true. Relativity doesn't apply to the speed of light, only objects APPROACHING the speed of light. We've tested relativity by launching clocks into orbit and keeping their time on Earth. They run slower because of the faster speed.

That's general relativity, not special relativity. And yes, you're right, and approaching is correct.

This post was edited by AEtheric on Jan 15 2009 09:42pm

Special relativity basically says that objects going the speed of light see no difference in their own time. So, a photon looking at a watch traveling with it will see time going normally, while in reality time will be going VERY slow for it.

Special Relativity is all about perception at the speed of light, and since we can't go the speed of light yet we can't test it.

This post was edited by Dr_zoidberg71 on Jan 15 2009 10:07pm

itt we need a wikipedia page open

ITT: Frogs that appear to be avatars.

mass is a measurement, not the thing being measured. u meant matter

and matter and energy are the same thing.

so..yea

This post was edited by dothe on Jan 15 2009 10:50pm

Its only within 1%- about 90% The speed of Light bro when the equation works

Not to be a troll... but stick to the questions you get in grade 11 physics.

if anyone is confused or wants to know more about relativity, post and ill send you a link to a website that gives like 2 or 3 pretty good ~25 min videos on relativity and pretty much every other part of physics. Oh yea, its all free too.