Arduino LED in hundreds of a degree centigrade:

The cost in power to generate a magnetic field through copper coils that would equal the attraction strength of the magnetic state gadolinium would result in the gain factor. Cost to the electro-magnet to transform the state would be compared to the amount of power it would take an electromagnet to generate the same attraction strength. It's obvious that there's an over unity ratio.

A toroid shaped ring of gadolinium, wrapped with a copper coil and surrounded by a circular Halbach array sandwiched between two Peltier modules could both trigger the transition and collect output through an SPDT switch.

I ordered this 1" cube for testing:

Quote from: synchro1 on August 22, 2018, 09:15:05 AM
Here's a picture of the stator and rotor. The "Gadolinium flux gate cylinder" should be the same size and sit in the same position:

Nice view out of the window ! Magnetism what is so special about it ? sure it has it's place but it slows things down
if you want to travel hyper space find ways to beat it, wast it, get rid of it!