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## Main Question or Discussion Point

1. Absolute simultaneity with standard synchronized clocks

In an one space dimensions approach we propose the following scenario. At the origin O of the inertial reference frame I we find a clock C0(0) and a source of light S(0). An observer R’ moves with constant speed V in the positive direction of the OX axis. M(a(xa) represents his position when source S emits a light signal in the positive direction of th)e OX axis, clock C0 reading t=0. M represents the location of R’ when the light arrives at the former position of R’ his position being defined by

x=x(a)(1+V/c) (1)

Clock C(x) reads at that very moment

t=x(a)(1+V/c)/c

(2)

clocks C0 and C being standard synchronized.

It is usual to consider that M(a) represents the apparent position M representing the actual position. (Robert J. Deissler, "The appearance, apparent speed and removal of optical effects for relavitistically moving objects," Am.J.Phys. 73 663 2005)

The event E(x=xa(1+V/c); t=ta(1+V/c)) has when detected from I’ the space-time coordinates

x'=x(a)/g (3)

t'=t(a)/g . (4)

Is there some flow?

In an one space dimensions approach we propose the following scenario. At the origin O of the inertial reference frame I we find a clock C0(0) and a source of light S(0). An observer R’ moves with constant speed V in the positive direction of the OX axis. M(a(xa) represents his position when source S emits a light signal in the positive direction of th)e OX axis, clock C0 reading t=0. M represents the location of R’ when the light arrives at the former position of R’ his position being defined by

x=x(a)(1+V/c) (1)

Clock C(x) reads at that very moment

t=x(a)(1+V/c)/c

(2)

clocks C0 and C being standard synchronized.

It is usual to consider that M(a) represents the apparent position M representing the actual position. (Robert J. Deissler, "The appearance, apparent speed and removal of optical effects for relavitistically moving objects," Am.J.Phys. 73 663 2005)

The event E(x=xa(1+V/c); t=ta(1+V/c)) has when detected from I’ the space-time coordinates

x'=x(a)/g (3)

t'=t(a)/g . (4)

Is there some flow?