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Nothing humble about it.
Suprising high-tech of its very own!
Also: Connectors.nothing makes you appreciate the engineering of quality connectors like trying to use some cheap garbage ones and having half of them get bad crimps or not stay plugged in
Superconductor entered the chat
Practically still a wire - but with superconductivity

It’s the coils of wire that make up a transformer that are really useful.
But only if you have alternating current!




