Sygnac Experiment? Indicated Speed of light relative to Gravity?

Answer 1

i think is not SYGNAC Its SAGNAC

Sagnac claimed a falsification of SR on the grounds that the local speed of light was affected by observer velocity if the observer was attached to a rotating platform. He showed that the Michelson-Morley experiment performed in such a rotating frame did show fringe shifts, and concluded that, even if linear motion was relative, rotational motion was absolute. DeSitter noted that stellar aberration was the same for both components of distant binary stars, even though the relative velocity of each with respect to the observer was quite different. Therefore velocity in some special frame (we might now say velocity in the local gravity field relative to the distant gravity field) rather than relative velocity between source and observer determines aberration.Both of these experiments were blows to SR’s contention that all motion was relative. Nonetheless, SR supporters came up with explanations of these phenomena too in an SR context, and these fairly non-trivial explanations are the subjects of textbooks on relativity today[SR=special relativity]

but we know light has no mass and it is not affected by gravity

Answer 2

WHAT!!!!!

Prakash, you seem to have slept through the SR lectures. While it's true that light has no mass, it still follows the shortest path geodesic through spacetime. And, if the local spacetime is operated upon by a gravitational tensor, the 3-space component is 'bent'. The bending of light from a straight line in the vicinity of a star has been measured I don't know how many times. It's real obvious when you watch a distant object appear to travel behind the Sun (as we orbit around it)


Doug

Answer 3

i'm no physicist, so i can in basic terms supply you a lay guy's view from what i study via the years. actuality: It has long been common that gravitational forces curiously act right now over the entire universe. it takes approx 8 minutes for the easy from the sunlight to realize earth yet we sense the gravitational effect very practically right now, subsequently it seems the fee of gravity is plenty greater beneficial than the fee of sunshine. in actuality it rather is been stated that the fee of gravity and easy-weight have been a similar on the beginning up of the enormous bang however the fee of sunshine is slowing down considering that. this concept if authentic it rather is going to alter the way we view physics: a million/ for starters c isn't consistent as einstein led us to have self assurance. 2/ possibly utilising this information we would desire to offer a propulsion equipment in keeping with gravitational concepts and commute the universe at warp speeds many circumstances that of c. 3/ interior the distant destiny if easy is slowing down this universe is going to be an enormously dark place. as for the planets dropping there orbit via fact the sunlight right now vanishing i ask your self might they initiate orbiting jupiter or our alledge binary brown dwarf enormous call. or might there be a residue effect from the gravitons debris? taking in account that those are very sturdy theories (yet theories on no account the fewer) it would look which you're ultimate examine the area under for greater info.