Re: relativity of simultaneity - real or perceived?



bsr3997@xxxxxxxxxxx wrote:
> sue jahn wrote:
> > <bsr3997@xxxxxxxxxxx> wrote in message news:1120954213.111827.298980@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> > >
> > >
> > > sue jahn wrote:
> > > > "Non Ame" <noname@xxxxxxxxxx> wrote in message news:daosqf$1skm$1@xxxxxxxxxxxxxxxxxxxxxxx
> > > > > "sue jahn" <susysewnshow@xxxxxxxxxxxx> writes:
> > > > >
> > > > > >"Non Ame" <noname@xxxxxxxxxx> wrote in message news:daoqhk$12j7$1@xxxxxxxxxxxxxxxxxxxxxxx
> > > > > >> "sue jahn" <susysewnshow@xxxxxxxxxxxx> writes:
> > > > > >>
> > > > > >> >"Non Ame" <noname@xxxxxxxxxx> wrote in message news:daomai$2fbf$1@xxxxxxxxxxxxxxxxxxxxxxx
> > > > > >> >> "sue jahn" <susysewnshow@xxxxxxxxxxxx> writes:
> > > > > >> >>
> > > > > >> >> >Relativity of simultaneity is not necessary to resolve the postulates
> > > > > >> >> >and the first one should be taken with a grain of salt when Coulomb
> > > > > >> >> >force is considered just as you exempt gravity in some cases.
> > > > > >> >>
> > > > > >> >> Maxwell's Equations are invariant under the Lorentz Transformations.
> > > > > >>
> > > > > >> >http://arxiv.org/abs/physics/0204034
> > > > > >>
> > > > > >> That is about the Coulomb GAUGE, not the Coulomb FORCE. The Coulomb GAUGE
> > > > > >> is a completely different object to the Coulomb FORCE, and is completely
> > > > > >> unrelated to it. The paper, to which you point, explicitly gives the
> > > > > >> Coulomb gauge as div A = 0, on page 2. In what way could you possibly
> > > > > >> think that that has any connection with the Coulomb force?
> > > > >
> > > > > No answer, I see. You can't give any connection between the paper and
> > > > > what you were attempting to use it to justify.
> > > >
> > > > Re: relativity of simultaneity - real or perceived?
> > > > For uniform motion:
> > > > Fire two equal cannon with two equal cables and
> > > > see two equal length flight paths to the point of collision.
> > > >
> > > > Plenty of simultaneity there.
> > > > If you can't survey that correctly with Maxwells equations then
> > > > you might re read that paper and see if Maxwell can even describe
> > > > radiation properly.
> > > >
> > > > Sue...
> > >
> > > The flight paths are of equal length in the rest frame of the cannons,
> > > but not in a frame moving in relation to them.
> > They probaby arent't equal in a frame moving in relaion to my dog
> > either. So what ?
> > Frames of reference are imaginary.
> >
> > Sue...



>
> Your driving down the road and toss a soda can onto the back seat. How
> far did it travel? As seen from the car about 3 feet back. As seen
> from the road? Not the same answer. There is nothing imaginary about
> those two frames of reference. You can make valid measurements using
> either set of coordinates.

If the cannon are moving toward each other the collision will be
midway.
If the cannon are moving away from each other the colliion will be
midwy.
The car, driver, road soda seat feet frames my dog and your cat have
nothing to do with it.

Sue...
>
> Bruce

.

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