[General] relativistic mass

[Mark, Martin van der]

Dear Andrew,
The paper "light is heavy" is no more, and no less, than a supposedly didactic and the only consistent explanation of special relativity and its consequences. Most important points are that there are some confusions:
1) mass is not matter
2) energy is equivalent, exactly the same as, mass: E=mc^2
3) light is massive, both in the inertial and gravitational sense, as is obvious from experiment
4) the greatest confusion is about light being massless, which indeed it would be if it couldn't/didn't move. The whole point is that light is always moving at the speed of light, so it is a non-existing limit.

Weighing a box with a molecular gas, or that of a "photon" gas give the same kind of result: the gravitational mass of the gas plus the weight of the box. Light is gravitationally deflected by large masses, experimentally. Light carries momentum and energy.

There is nothing new in what i say, it is consistent with Einsteinian relativity an represents the vision of Herman weyl too, and many others

Best, Martin

Verstuurd vanaf mijn iPhone

> Op 8 okt. 2015 om 19:52 heeft Andrew Meulenberg <mules333 at gmail.com> het volgende geschreven:
>
> Dear Martin,
>
> In your "Light is Heavy" you state:
>
> "In the case of light, the rest mass is zero, but the gravitational mass equals the inertial mass, which is identical to the relativistic mass."
>
> Do you have any reference for my contention that the relativistic mass of particles is bound EM-radiation?
>
> In the case of electron/positron annihilation, restmass is converted to relativistic mass & then to radiation. However, I do not know of any text or paper that identifies relativistic mass as bound EM-radiation. Your statement is close to that.
>
> Andrew
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