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A manhole cover may have been the first object launched into space
Manhole covers are round for a mix of safety, engineering, and practical reasons. A circular cover can't fall through its ...
Manhole covers are usually round. Most people probably don't spend their days thinking about why that is. But there's actually a cool geometry reason behind the design: Circle-shaped things can't fall ...
Forbes contributors publish independent expert analyses and insights. Dr. Lance B. Eliot is a world-renowned AI scientist and consultant. Have you been asked about manhole covers in any of your recent ...
Let’s talk about manhole covers. Every city in the world has them, yet no one ever pays attention to the ugly, stinking, rusty metal plates, unless they’re comically misaligned with road markings—or ...
On the streets of Japan, if you spend too much time staring at your phone, you might just miss what's right under your feet. The Japanese have made the ordinary extraordinary, turning black metal ...
When walking down the street, you probably don’t stop to notice the manholes on the road. And if you have, you may not have realized that nearly all of them are round—or that those with other shapes ...
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