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Published online 12 April 2006 | Nature | doi:10.1038/news060410-6

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Jumpy eggs caught on camera

Give it a good spin and a hard-boiled egg will start leaping.

After two years of work, with a purpose-built steel machine wired up to high-speed cameras, microphones and electronic sensors, a team of Japanese researchers has finally proved that a hard-boiled egg can jump1. All it takes, according to Yutaka Shimomura and colleagues of Keio University, is a good spin.

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