In reply to Eric Walker's message of Sun, 28 Jan 2018 12:39:48 -0700: Hi Eric, [snip] >On Sun, Jan 28, 2018 at 12:32 PM, <mix...@bigpond.com> wrote: > >...which would make sense if light simply followed the curvature of space. >> > >The curvature of spacetime is perhaps an abstraction that gets in the way >of understanding in this instance. It is equivalent to the gravitational >influence of two or more bodies on one another. Having a massive body be >able to tug on a photon, while the photon does not tug on the massive body >in the opposite direction, reminds me vaguely of a description of a rowboat >with oars, where the rower is somehow able to use the oars to push the boat >forward, while the water is not pushed in the opposite direction. > >I suspect that if one ponders the suggestion of light not having >"gravitational mass" long enough, it should be possible to come up with an >experiment that will demonstrate a violation of conservation of momentum.
.. go right ahead. :) Regards, Robin van Spaandonk local asymmetry = temporary success
