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Small-Scale Question Sunday for January 22, 2023

Do you have a dumb question that you're kind of embarrassed to ask in the main thread? Is there something you're just not sure about?

This is your opportunity to ask questions. No question too simple or too silly.

Culture war topics are accepted, and proposals for a better intro post are appreciated.

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My parents have a wireless phone charger. Problem is that it basically doesn't work when they have a case on their phones. Is there a solution to this (other than removing their phone case)?

Maybe it's just the extra distance caused by the thickness of the case. Does charging work if you take off the case and put a piece of cardboard between the phone and the charger? The inductive coupling only works real close.