Another reporter handicapped by being beyond his depth. No hint whatsoever as to what magic is involved in creating no-energy heat.
It's been a long time since I seriously studied physics, but it seems to me that generating heat is more energy intensive than generating magnetic fields. I hope there are followup details, somewhere.
Yeah, and I would think a lot slower. How do you rapidly switch a heater's output level?
Creating magnetic fields uses significantly more power. A magnetic field is generated by passing current through a coil. A relatively small 3 Tesla field using a resistive coils requires a large amount of power. The largest magnet in the world at the National High Magetic Field Laboratory has its own power plant and consumes about 25 percent of the power in Tallahasssee, when fully powered.
So no....using a small heat pulse to reverse a field is magnitudes less power. By the way, Nature and Science are probably the top scientific journals in the world. It wouldn’t be there if it wasnt significant.