I think the reason for the word "relativity" should be explained on this page. What is relative, and why?
- appears to be done.
I thought E=mc
2 also applied when the mass was moving - no longer is kinetic energy separate, but bundled in with the increased mass of the object? Or is it - as I am thinking - that you're only using E=mc
2 to get the rest energy, then tacking on KE afterwards for that particular application? Perhaps this needs clarifying.
Dave McKee
Regarding a recent change to this article--I'm no physicist, but I always thought that relativity states that mass increases as velocity approaches the speed of light. Am I wrong on this?
Rest mass is a constant, but mass itself indeed increases in such a way that one can never accelerate an object beyond c.
I'd like very much to hear about the [twins paradox]?. Never been much comfortable with that one.
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