Art wrote:
"Equilibrium is when there is no gain."

I for one appreciate that statement because from my standpoint it is the
first intelligible statement I remember from Art defining "equilibrium".
If you tip a ground-mounted vertical antenna, you lose "equilibrium"
because you disrort its normal omnidirectional pattern. The result is a
gain in some directions and a loss in others. Gain and directivity are
two sides of the same coin.

Light beams and radio beams are very similiar except light is visible.
I`ve seen no gravitational effects on light beams and were radio waves
visible, I`d wager you would see no gravitational effects on them
either. The same for the Coriolis effect.

Best regards, Richard Harrison, KB5WZI