TIL The crucial reason why manholes are round is because a round lid cannot fall into a round opening whereas a square lid can fall into a square opening diagonally

fevereiro 28, 2020

TIL The crucial reason why manholes are round is because a round lid cannot fall into a round opening whereas a square lid can fall into a square opening diagonally

TIL The crucial reason why manholes are round is because a round lid cannot fall into a round opening whereas a square lid can fall into a square opening diagonally https://en.wikipedia.org/wiki/Manhole LocusStandi February 28, 2020 at 06:56AM

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TIL The crucial reason why manholes are round is because a round lid cannot fall into a round opening whereas a square lid can fall into a square opening diagonally

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