Answer
In 2000, Andre Geim received the Ig Nobel Prize in Physics "for using magnets to levitate a live frog." The prize is awarded to celebrate achievements that first make people laugh and then make them think. Geim's experiment demonstrated the Meissner effect, which is the expulsion of a magnetic field from a superconductor. This effect is crucial in various applications, including MRI machines and superconducting magnets.