On Mar 26, 1:36=A0am, Eric Gisse
> On Mar 25, 11:06=A0pm, "Y.Porat"
> > very nice
> > i can see some advance
>
> > NO MASS NO REAL PHYSICS !! =A0 =A0 (said old Catto (:-)
> > =A0even fields has mass !!
>
> How come Maxwell's equations describe macroscopic electric and
> magnetic fields exactly without mass?
He said "real". Calculus is not cinematics.