The old phrase "walking on eggshells" actually gives the honest egg a bad rap. Eggs are domes, and domes are among the strongest structures in the natural world. Joe Palca and intern Madeline Sofia demonstrate the strength of the egg in this video installment of "Joe's Big Idea." Watch and marvel as the eggs withstand a gallon of water, bowling balls and ... Joe himself? Take a look to learn about what gives frail eggshells their strength!
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