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How come manhole covers are seemingly always round and not square? 🤔 Manhole covers are round primarily because they are the safest shape, as a round cover cannot fall through its own circular opening, unlike a square cover which could be tilted and dropped in! #science #physics #engineering #construction | Learning with Lyrics
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How come manhole covers are seemingly always round and not square? 🤔 Manhole covers are round primarily because they are the safest shape, as a round cover cannot fall through its own circular opening, unlike a square cover which could be tilted and dropped in! #science #physics #engineering #construction | Learning with Lyrics
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