2015 Ig Nobel Awards (10 images)

2007 Ig Nobel Prize winner Dan Meyer swallows a sword on stage during the 2015 Ig Nobel Prize ceremony at Harvard University in Cambridge, Massachusetts on September 17, 2015. The prizes which are awarded by the Annals of Improbable Research are intended to celebrate the unusual, honor the imaginative and spur people's interest in science, medicine, and technology. Photo by Matthew Healey/ UPI

Gregory A. Weiss of UC Irvine, holds up two bags of smashed eggs while demonstrating 2015 Ig Nobel Prize in Chemistry for inventing a chemical recipe to partially un-boil an egg at the awards ceremony at Harvard University in Cambridge, Massachusetts on September 17, 2015. The prizes which are awarded by the Annals of Improbable Research are intended to celebrate the unusual, honor the imaginative and spur people's interest in science, medicine, and technology. Photo by Matthew Healey/ UPI

David Hu of Georgia Tech, (C) accepts the 2015 Ig Nobel Prizes in Physics for testing the biological principle that nearly all mammals empty their bladders in about 21 seconds (plus or minus 3 seconds) at the awards ceremony at Harvard University in Cambridge, Massachusetts on September 17, 2015. The prizes which are awarded by the Annals of Improbable Research are intended to celebrate the unusual, honor the imaginative and spur people's interest in science, medicine, and technology. Photo by Matthew Healey/ UPI

A special ceremony is held featuring a "flying" pink plastic flamingo in remembrance of it's late inventor, Don Featherstone, during the 2015 Ig Nobel Prize ceremony at Harvard University in Cambridge, Massachusetts on September 17, 2015. The prizes which are awarded by the Annals of Improbable Research are intended to celebrate the unusual, honor the imaginative and spur people's interest in science, medicine, and technology. Photo by Matthew Healey/ UPI