Short Stuff: Exploding Manholes
Short Stuff: Exploding Manholes
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If you live in a big city in a cold climate, you should keep an eye out for 100-pound cast-iron manhole covers suddenly launching 50 feet into the air. It’s unnervingly common and we’ll tell you why. Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htm
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