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ceview (2857765) writes "The speed of light appears to be not constant at a quantum level. It may appear to be dependent more on the electric charge of the vacuum. Also published in the European Physical Journal D http://epjd.epj.org/ Does this really have implications to GPS, quantum gravity?" Link to Original Source
Nothing in progression can rest on its original plan. We may as well think of
rocking a grown man in the cradle of an infant. -- Edmund Burke