There was an interesting couple of documentaries on Channel 5 UK last night. They both included the term 'UFO' in their titles, but focussed on secretive military research and the paranoia of the cold war after the second world war, etc. What I found most interesting was some of the research to do with EM effects. Various people were interviewed, most of whom had worked on various 'strange' projects.

One ex-engineer demonstrated an effect that he could not explain. A vast coil of fine wire, about the size of the head of a tennis racket, was plugged into the mains (US plug), and it floated above his wooden desk. There was no suggestion of any trickery. He said something like, "Of course, this effect can be varied by altering the power and frequency, etc."

This particular engineer was called because he had recognised some reported UFO/UAP phenomena as bearing similarities to this curious EM effect, and projects he had worked on. The trick can be a little dangerous of course, because of the heat and voltage concerned. The wires can soon begin to glow.

Is it really this simple to demonstrate the potential EM nature of gravity?