There is some good info in here for the experimenters of magnetic motors and homopolar motors
http://revolution-green.com/2013/10/23/homopolar-motor-liquid-metal-brushes/ (http://revolution-green.com/2013/10/23/homopolar-motor-liquid-metal-brushes/)
Kind Regards
I've heard of being bi-polar before, but now you're just being ridiculous!
"Homopolar"
You made that up, right?
(I kid)
30:1 power to weight ratio is impressive.
TS