Jumpy eggs caught on camera
Apparently a spinning hard-boiled egg can make small jumps into the air.
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 jump. All it takes, according to Yutaka Shimomura and colleagues of Keio University, is a good spin.
A spinning egg will spontaneously rise up from lying on its side to standing on its end. Shimomura, along with physicists at the University of Cambridge, had previously worked out why this is so, and predicted that the forces involved could also make an egg leap a tiny bit into the air.
I don’t know what possible use this could have but there you go.
