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vacuum-mechanics · 10-29-2005, 06:08 AM

Dear Dave and friends,

-Talking about equation E²=p²c²+m²c^4. It was derived in relativistic dynamics part of special theory of relativity (STR). I could not found in any textbook which derived the equation. By the way general theory of relativity (GTR) is the extend theory from STR by including gravity. How could the equation was derived from GTR?

- Sorry I am not so clear about your explanation for the increasing of mass, length contraction and time dilation of the moving object. Anyway everyone who familiar with STR would know them. The crucial point about them is that there is no explanation why it is so (what is their cause)? But if we know the physical meaning of Lorentz transformation (which was used for their derivation), then we could understand why it is so (and we would see that it is misinterpretation).

Sincerely yours,

Nimit Th.

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vacuum-mechanics Green Belt Status: Offline Posts: 61 Thanks Given: 2 Thanked 13x in 10 Posts Join Date: May 2004 Rep Power: 17	10-29-2005, 06:08 AM Dear Dave and friends, -Talking about equation E²=p²c²+m²c^4. It was derived in relativistic dynamics part of special theory of relativity (STR). I could not found in any textbook which derived the equation. By the way general theory of relativity (GTR) is the extend theory from STR by including gravity. How could the equation was derived from GTR? - Sorry I am not so clear about your explanation for the increasing of mass, length contraction and time dilation of the moving object. Anyway everyone who familiar with STR would know them. The crucial point about them is that there is no explanation why it is so (what is their cause)? But if we know the physical meaning of Lorentz transformation (which was used for their derivation), then we could understand why it is so (and we would see that it is misinterpretation). Sincerely yours, Nimit Th.