probably a contender for the Ig Nobel

[bunrab]

An article from the 27 May issue of Science News describes research that would be a good contender for the next Ig Nobel awards:

A well-spun egg also jumps
  Physicists have demonstrated that spinning a hard-boiled egg horizontally makes it jump into the air.
  Scientists already knew that a fast-spinning egg spontaneously stands on its end. Random jitters during that process could amplify into leaps, researchers had theorized.
  In some high-speed video images, hand-twirled eggs seemed to jump. But no one knew whether those jumps were real or resulted from inadvertent upward propulsion from a spinner's hand, notes Yutaka Shimomura of Keio University in Yokohama, Japan.
  In new tests, he and his colleagues spun egg-shaped pieces of aluminum at initial rates of up to 2,500 revolutions per minutes in a machine custom-built to impart strictly horizontal spins. By means of optical, acoustic, and electronic measurements, the team detected that the mock eggs leaped a fraction of a millimeter off the surface for up to a few hundredths of a second. During spins of actual hard-boiled eggs at 1,800 rpm, the researchers saw gaps momentarily appear beneath the eggs.
  The team's findings, reported in an upcoming Proceedings of the Royal Society: A, illuminate how tiny fluctuations in physical situations can lead to unexpected effects, Shimomura says.