Stuff You Should Know: Don't Be Dumb: Why Are Manhole Covers Round?

HowStuffWorks_CulturePublished: June 15, 2018
Published: June 15, 2018

Are you a regular weekly viewer of Don't Be Dumb who was also wondering just earlier today why manhole covers are round? If so, that's quite a fortuitous convergence of circumstances, because here's an episode covering precisely that topic.

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