Re: EP and acceleration


"Eugene Stefanovich" <eugenev@xxxxxxxxxxxx> wrote in message news:42E01C7E.50703@xxxxxxxxxxxxxxx
>
>
> Dirk Van de moortel wrote:
> > <we_pretty@xxxxxxxxx> wrote in message news:1121935248.595007.141800@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> >
> >>According to an equivalence principle if I am put in an
> >>elevator, I cannot distinguish between being on a surface
> >>of a planet and being accelerated in an empty space.
> >
> >
> > A slightly better formulation would be:
> > Being in a sealed box, without being allowed to look outside,
> > you cannot distinguish between being on the surface of a planet,
> > and being uniformly accelerated in empty space.
>
> Yes you can. Take an electrically charged body with you in the box.
> If your box is accelerated, the body will radiate photons.

Perhaps you can. I'm not responsible for the equivalence
principle. I merely gave a "slightly better formulation" of it.
But apart from that, you snipped my remark about locality.
Since this is about local measurements, you are supposed to
accelerate with the charge, so you will not be able to measure
the radiation - locally.

> If your box sits in static gravity, there will be no radiation.
> Check gr-qc/9303025

.... and Ted's reply on
http://groups-beta.google.com/group/sci.physics.research/browse_frm/thread/8322347839596fb9
and his reply #7 on
http://groups-beta.google.com/group/sci.physics.research/browse_frm/thread/6e116bbb775cc26a
etcetera...

Dirk Vdm


.

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