I just read something on this yesterday proving it to be right ft... I am a huge skeptic and didn't believe it, but this article described that it goes off of magnetic something or another in our skulls... so this article went on to say if you don't believe then try it out on people around you.. at this point I was intrigued!!! So I decided to perform my own experiment... here's what I did and my results....
I put my 18k white gold diamond wedding ring on a piece of thread, and because I didn't want any influence from myself I tied the thread to a 2x2 piece of wood and set it on the couch and chair so that you can sit under it and it was perfectly still... so I went first, I sat under it where it was about 3-4 inches from the top of my skull, it started circling.... hmmm, interesting!! Next I made my dh sit under it, same thing 3-4 inches from skull, it slowly started swinging back and forth... we also tried our two dogs, the girl it circled, the boy it swung back and forth.... ok, by this point I was fully believing it.. so we decided to try my belly, we positioned the ring over the baby (confirmed on Doppler) and wouldnt you know it started circling!!! We did it over dh's stomach and nothing... I've already been believing this is a girl... but I didn't clear my mind, I didn't think I could influence it by my mind... weird!!! Anyway I'll know in 4-5 weeks!!!