Einstein's General Relativity predicted the aberration of starlight due to space-time warpage, which could only be confirmed during an eclipse by measuring the location of a star beyond, but close to the sun from our vantage point. The difference of measurement of the location of the star before and during the eclipse was predicted quite precisely from the field equations of GR.

To the best of my knowledge, at least.

This applies to this conversation concerning the speed of the propagation of light! No need for QM on that aspect though.

Oh yes I am not referring this to do with anything with quantum mechanics, but what I was trying to say is that his discovery was refuted by many scientists or at least not supported in the beginning.

It is only one prime example when a scientist discovers something that somehow in human nature they are not only skeptical but also unapproachable at the same time leading to not having enough support for their discovery.

I mean just imagine he was different then most. Every German at the time wore classical dark suits with matching hats. He instead was with wild hair and no socks.

He was as some would mention unorthodox in his ways and his ideas which where unique where not so easily accepted by the most notable scientists at the time.

It was a struggle indeed.

Indeed! Against the grain is not an easy way to ride.

Sometimes I wonder if such scientists as those in the 30s will have somekind of star quality again in the near future discovering something truly bizarre yet unique and useful for mankind. I mean in today's society you don't see much of that, but of course it seems we also have different values and technology to go with that.

Yet it would be nice to see a superstar scientist on the rise again.

I don't understand the connection between space/time warpage and the speed of light. Does gravity actually affect the speed? I thought it simply affected the direction. Or does the warpage cause refraction?

The warpage is gravity in GR.

Yes, I understand that. The question was, does warpage/gravity affect the speed of light? Does it actually cause it to move slower in addition to changing it's direction (i.e. "bending" it)? Or are the "bending" and the "slowing" actually the same thing in some higher mathematical way that I don't understand?

The distance increases. The time to reach us increases. The measurements without taking the aberration into account are incorrect because the distance is incorrectly calculated.

Does speed change as in the QM picture with the interaction with other particles/waves?

No.

Ah, I see...

I stand corrected!

I just want to know where those Quantum Mechanics get ther tiny little screwdrivers and wrenches...

I heard that the Schödinger equation predicts that there is zero probability that they get them from Home Depot and a 100% probability that they actually do their work by waving magic wands.