English: This image shows a schematic depiction of the clock synchronisation proceduce that was examined by Poincaré in 1900.
The red lines represent world lines in newtonian space and time; in the context of Poincaré's examination these are world lines of motion with respect to an unmoving immutable w:luminiferous ether.
The yellow lines represent pulses of light (or pulses of any other electromagnetic wave) that are sent back and forth among a group of clocks that do not have a velocity relative to each other. If the two-way transit time of the signals remains the same, then it has been verified that the clocks do not have a velocity relative to each other. If the clocks to not have a velocity relative to each other, then there is no Doppler shift, allowing the procedure operators to verify whether the clocks themselves are counting time at the same rate.
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
'''Description:'''<BR> This image shows a schematic depiction of the clock synchronisation proceduce that was examined by Poincaré in 1900. The red lines represent world lines in newtonian space and time; in the context of Poincaré'