The last picture shows a mercury arc valve, which behaves like a diode, for anyone curious.

https://en.wikipedia.org/wiki/Mercury-arc_valve?wprov=sfla1

It's ok you can swear on Lemmy

Not to be confused with this disasterpiece.

Any sufficiently reliable magic is indistinguishable from science.

FULL BRIDGE RECTIFIER!!!

Oh yeah if it's not magic explain bees

Has the power to level power entire cities