Re: Nitpicking: gravity is not a force???

[brian whatcott <inet@intellisys.net>]

At 01:52 8/9/98 -0400, Hugh Logan wrote:
....
> As I see it, the electrostatic field is not completely analogous. It
> takes more than a uniform field for one not to "feel" the field. There
> is no principle of equivalence between the charge q in F=k(q*q')/(r^2)
> (or F=q*E from the field point of view) and the inertial mass m of a
> charged particle). The acceleration of a charged particle in a uniform
> electric field E is a = F/m = (q*E)/m = (q/m)*E . Unless all particles
> had the same charge-to-mass ratio, their accelerations would be
> different for a given uniform E-field.
....
> Hugh Logan

Hugh examined properties of mass when considering charged particles.

 Perhaps it would be better to consider the self magnetic field 
generated by a charged particle in motion wrt some frame?

Brian Whatcott