Have YOU done that? No.

Nice. You don't even need an answer. :) Why I'm not surprised? Typical propagandist behaviour.

I did it with laser gyro. It perfectly shows both, Earth rotation and Earth curvature. It is cheap, simple and have no moving parts. I grudge to break my working avia horisons, I value them as vintage avionics, they really pieces of mechanic art, so to cut the weights from them will be just vandalism.

Niether of us can use gyro to prove shit at this point.

I can. Everybody with hands from right place can. For less than $100. You can't or don't want.