On 12/26/2013 1:57 PM, LizR wrote:
On 27 December 2013 08:36, meekerdb <meeke...@verizon.net <mailto:meeke...@verizon.net>> wrote:


    On 12/26/2013 4:49 AM, Edgar L. Owen wrote:
    Hi Jason,

    The STc Principle conclusively falsifies block time, since the fact that 
everything
    continually travels through spacetime all the time requires everything to 
be at one
    particular position in spacetime all the time. This is confirmed by direct
    experience, that we are always at a single point in spacetime. How could it 
be
    otherwise? The notion of block time is based on a misunderstanding of SR.

    Believers in block time need to offer an alternative explanation (than the 
one I
    give above) for the self-evident fact that we all experience our existence 
in a
    common present moment which they are unable to do.

    How do you know we experience our existence in a common present moment?  
LizR in New
    Zealand is some tens of milliseconds away from me in California.  If we try 
to
    synchronize our clocks we will have to assume we're not moving relative to 
one
    another, i.e. that we are in the same inertial frame.  If we were moving 
relative to
    one another the synchronization will be different.


We are in fact moving relative to each other, possibly by several 100 km/hr (my visualisation is a bit shaky, even though I have a handy globe...)

If I pick someone at the antipodes, and say we're both on the equator, they are moving at the same speed as me in the opposite direction (relative to the Earth's centre) which in this case is about 1000 m.p.h. so our combined relative velocity is around 2000 m.p.h.

Right.  That's why GPS defines coordinates in ECEf: Earth Centered Earth 
*Fixed*.

Brent


Excuse me I have to lie down for a moment.
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