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> Of all the trades, electricity is the one that I know enough about to supervise somebody. (e.g. I am baffled by plumbing)

Curiously, we’re in opposite situations. I have a (very) basic understanding of electricity, just enough to change power outlets and the like. But in general I’m baffled by it because it’s a bunch of dangerous stuff I can’t see with values I don’t fully understand¹.

Plumbing, on the other hand, is water inside tubes controlled mechanically. Taking things apart reveals the simplicity of the system. After doing a fix I can feel confident in the safety and reliability of the work even before opening on the main valve again².

¹ If anyone has recommendations on a trustworthy course / YouTube playlist which teaches enough basics to understand electrical wiring in residential homes, I’m interested.

² I’m not doing super complex jobs, but in my own home it’s been years since I’ve needed to call a plumber.



I received a PhD in physics so I got a solid dose of electricity and electronics.

I did help teach an autotutorial class in physics for premeds which got me to do a little more with fluid mechanics than most people but the trouble I have with plumbing is finding documentation for the details.

For instance when it comes to sealing PVC pipes I have seen instructions that tell you to "refer to the documentation from the pipe manufacturer" which is not at all straightforward for pipes that have been there 20+ years.


Not a course, but this channel has a ton of interesting content on US residential wiring: https://www.youtube.com/c/technologyconnections




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