На информационном ресурсе применяются рекомендательные технологии (информационные технологии предоставления информации на основе сбора, систематизации и анализа сведений, относящихся к предпочтениям пользователей сети "Интернет", находящихся на территории Российской Федерации)

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Do You Know Why Manhole Covers Are Round?

Author: Trisha Leigh Zeigenhorn / Source: did you know?

Perhaps it’s not exactly a question for the ages, but now that I’ve asked, I’m guessing you’re dying to know the answer, right? I mean, if nothing else, it’s exactly the sort of question that will win you a round of Jeopardy, or a game of Trivial Pursuit, or the title of the cleverest person at your next office party, and really, what more motivation do you need in life?

In all seriousness, though, it is an interesting question. Of all the available shapes in the world, why are all manholes circles? Who decided on circles? And why did everyone else go along?

Well, read on for answers, my curious friend.

According to science teacher and author Larry…

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