On Wed, Mar 20, 2019 at 3:06 PM 'Brent Meeker' t < [email protected]> wrote:
>> If you were in a elevator with a charged particle accelerating due to >> gravity > > > > You mean the elevator is stationary relative to the Earth and the > charged particle is accelerating, i.e. falling, due to gravity? Or do you > mean both the elevator, you, and the particle are in free fall? > If the elevation is stationary sitting on the surface of the Earth then it is not accelerating, nor is it in a inertial frame because a force from the ground is being applied. > >> or due to a rocket in deep space you would not observe any >> electromagnetic radiation, although if the elevator were made of glass an >> outside observer who was not accelerating would. > > > > But in that case the observer in the elevator would see the particle > mysteriously lose energy without radiating. > I'm not sure I know what you mean. If you're accelerating side by side with a electron by exactly the same amount how could you observe the electron lose energy? How would that loss of energy manifest itself to you? It's true that depending on the reference frame a electric field can look like a magnetic field and vice versa, but it makes no difference if the acceleration is caused by a rocket or a gravitational field, you can't use that effect to tell the 2 situations apart. John K Clark > -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/d/optout.
