Amp Nerd

Charge circulates and returns to the source; what your meter records is energy transferred out of the electromagnetic field into heat, light and motion.

Flux pinning locks a superconductor at a fixed position and orientation, which is why it can hang below a magnet as well as float above one.

The ceramic top is never heated directly; whatever warmth you feel afterward has conducted down from the cookware above it.

No isolated magnetic pole has ever been observed, which is why every magnetic field line closes on itself and every cut magnet regrows both ends.

Contact charging depends on surface condition, humidity and contamination, so published material rankings are guidelines rather than constants.

Output depends on the temperature difference across the module, so a good heatsink matters as much as the heat source itself.

Deforming a crystal separates charge and produces a large voltage from a tiny amount of energy, which is why harvesting claims disappoint.

Every practical electrolyzer needs more energy in than the hydrogen gives back, which is why on-board water fuel devices cannot work.

Plating thickness follows current density, so edges build up and recesses stay thin unless the bath and geometry are managed.

The famous feud was largely between companies and their agents, and several of the best-known anecdotes are disputed or misattributed.