i don't get why the wall power runs at 50 or 60 hertz if the human eye can only see 24
@mia
This may be a reason
https://physics.stackexchange.com/questions/211246/why-does-public-mains-power-use-50-60-hz-and-100-240-v
Thanks for asking, as I can take a read and have a better understanding too
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