On Thu, Feb 27, 2014 at 1:41 PM, leaking pen <[email protected]> wrote:
> Berry, I'm fairly certain that is dilation from the velocity copresent > with the acceleration. Technically acceleration is a measure of how fast > the velocity is being changed by the application of force, right? > But that would need another object with a relative frame which isn't mentioned. And most importantly it clearly states that "gravitational time dilation" is co-present, not that SR's form of time dilation is copresent from the velocity produced! > Alain, the distortion they have is from their velocity of travel towards > or away from us in orbit. > > > > On Wed, Feb 26, 2014 at 5:26 PM, Alain Sepeda <[email protected]>wrote: > >> note that GPS satellites have experienced that phenomenon. >> since they experience different gravity field (in fact they are in >> freefall, unlike us walkers), they experience time dilation/contraction >> >> >> 2014-02-27 0:40 GMT+01:00 John Berry <[email protected]>: >> >> On Thu, Feb 27, 2014 at 12:12 PM, leaking pen <[email protected]> wrote: >>> >>>> Not at all, however, if you are accelerating at a rate away from the >>>> body that the clock is falling towards, >>>> >>> >>> No offence to you, but I thought that misunderstanding this was >>> impossible. >>> You are not accelerating away from a gravity source the clock is falling >>> towards. >>> >>> These are 2 separate experiments related toEinstein's thought >>> experiment about either being in an elevator and being subjected to uniform >>> acceleration in free space (no gravity). >>> OR being in an elevator sitting on the ground. >>> >>> You can't tell which test you are undergoing everything seems identical, >>> So I am adding a test, you drop a clock, the instant the clock on the >>> accelerating elevator is let go of it assume a constant relative velocity >>> to every other object in space that is confusingly termed an inertial >>> reference frame, it is no longer accelerated. It can not be readily >>> justified to experience time dilation from acceleration it isn't undergoing. >>> >>> So either the same happens in the elevator test on the planet in the >>> gravity field also (which would be very dramatic in a black holes time >>> dilation field) OR it doesn't and the equivalence principle falls over, at >>> least wounded. >>> >>> As far as I am aware and can tell from looking, neither conclusion is >>> expected, but one must be true, or something even stranger that is also not >>> predicted a time dilation aura effecting objects around an accelerating >>> object. >>> >>> The rest you wrote as far as I could tell did not relate to what I am >>> proposing. >>> >>> John >>> >> >> >
