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Sunday, February 7, 2016
Quote of the Day
Michael Fry and T. Lewis
"The more things change, the more they remain... insane."
Why are Manhole Covers Round?
Why are manhole covers round versus any other geometrical shape? --James Arndt, Garden Grove, Calif. It's time to clear up this longstanding misconception. The standard answer is, “A round shape is the only one that will prevent the cover from falling through the opening.” This is not correct. A round cover will fall through a […]
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