[/FONT]In the Einstein relativity theory, anything which has energy has mass – mass in the sense that it is attracted gravitationally. Even light, which has an energy, has a “mass.” When a light beam, which has energy in it, comes past the sun there is an attraction on it by the sun. The light does not go straight, but is deflected.
gravitational mass vs. inertial mass: The debate goes on. They are known to be virtually the same by measurement but there is no theoretical reason why they should be, so far as I know.More importantly 99% of the people on this planet don't know the difference between Weight and Mass!!!
Even science programs on History Channel promote this confusion by incorrect use of terms.
But let me play devils advocate to get a debate going ....
There is only one mass .... rest mass , gravitational mass, inertial mass , it's all the same .... but this mass will increase as velocity increases .
Only virtually the same ??? What experiments show a difference??? In Physics experiment is everything ...I don't see what debate there can be unless there is experimental evidence of a discrepancy .gravitational mass vs. inertial mass: The debate goes on. They are known to be virtually the same by measurement
Really ?? I didn't know that !! Are you saying mass doesn't increase with speed???rest mass vs. "this mass will increase as velocity increases": Typically we don't consider mass to depend on the speed any more.
Two of the greatest bringing together of theory from disparate starting points in Physics aregravitational mass vs. inertial mass: The debate goes on. They are known to be virtually the same by measurement but there is no theoretical reason why they should be, so far as I know.
Just looked into it ....as usual it's idiot "physicists" trying to complicate and confuse things ... make things more mysterious than they really are ... they have to make a noise so people think they're doing something ....Oz93666,
Mass is a funny thing. Have you ever heard of effective mass, particularly in connection with Newton's second law?
Just looked into it ....as usual it's idiot "physicists" trying to complicate and confuse things ... make things more mysterious than they really are ... they have to make a noise so people think they're doing something ....
Mass is Mass , we understand and can predict precisely how it behaves ...nothing new has happened in this regard for 100 years ... so all these different "types" of mass are just hot air (IMHO) ...
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