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- Thread starter Masest
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- #1

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- #2

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the problem is that you dont have the right definition of mass. it isn't the quantity of matter, thats the mole. mass is just an intrinsic property of matter. Even the new generation of scientist dont know anything about mass. (see higgs boson).

You have to understand that formula in this way: No physical system with a mass M different from zero can reach the speed of light c. Otherwise you need an infinite ammount of energy.

In any case i think you are confusing the rest mass Mo wich is always the same and the relativistic mass M=Mo/sqrt(1-beta^2). what remain constant and gives you the conservation (lorentz invariant) is the square of the 4 momentum. wich is

p^2 wher p=(E,P) P is the common 3-dim momentum.

- #3

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i think that what i have told you in the last part is a little bit too much 4 high school.

well in any case try on wikipedia maybe it can be more clear.

especially it is written in english. i think i cannot comunicate in this language as well as in italian.

bye

marco

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