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xkcd #3186: Truly Universal Outlet
(imgs.xkcd.com)
xkcd #3186: Truly Universal Outlet
Title text:
Building Inspectors HATE This One Weird Trick
Transcript:
Transcript will show once it’s been added to explainxkcd.com
Source: https://xkcd.com/3186/
Quite a lot of plugs are polarized, as you would see if you followed the link in my post. This includes plugs in the USA, Canada, Japan, China, Argentina, Switzerland, Denmark.