Sakamoto, and Masumi Wakita, of Keio University, for their success in training pigeons to discriminate between the paintings of Picasso and those of Monet. Public Health – Presented to Martha Kold Bakkevig of Sintef Unimed in Trondheim, Norway, and Ruth Nielsen of the Technical University of Denmark, for their exhaustive study, "Impact of Wet Underwear on Thermoregulatory Responses and Thermal Comfort in the Cold." 1996 The ceremony took place on 3 October 1996. Art – Presented to Don Featherstone of Fitchburg, Massachusetts, for his ornamentally evolutionary invention, the plastic pink flamingo. Featherstone was the first Ig Nobel Prize winner to appear in person at the awards ceremony to accept the award. Biodiversity – Presented to Chonosuke Okamura of the Okamura Fossil Laboratory in Nagoya, Japan, for discovering the fossils of dinosaurs, horses, dragons, and more than one thousand other extinct "mini-species", each of which is less than 0.25 mm in length. Biology – Presented jointly to Anders Bærheim and Hogne Sandvik of the University of Bergen, Norway, for their report, "Effect of Ale, Garlic, and Soured Cream on the Appetite of Leeches." Chemistry – Presented to George Goble of Purdue University, for his blistering world record time for igniting a barbecue grill: three seconds, using charcoal and liquid oxygen. Economics – Presented to Dr. Robert J. Genco of the University at Buffalo for his discovery that "financial strain is a risk indicator for destructive periodontal disease." Literature – Presented to the editors of the journal Social Text for publishing a paper composed under deceptive pretenses that couched an absurd but theoretically specialized argument about the nature of gravity in a mire of academic buzzwords associated with humanities departments. (See Sokal Affair for details). Medicine – Presented to James Johnston of R.J. Reynolds, Joseph Taddeo of U.S. Tobacco, Andrew Tisch of Lorillard, William Campbell of Philip Morris, Edward A. Horrigan of Liggett Group, Donald S. Johnston of American Tobacco Company, and Thomas E. Sandefur, Jr., chairman of Brown and Williamson Tobacco Company, for their unshakable discovery, as testified to the U.S. Congress, that nicotine is not addictive. Peace – Presented to Jacques Chirac, President of France, for commemorating the fiftieth anniversary of Hiroshima with atomic bomb tests in the Pacific. Physics – Presented to Robert Matthews of Aston University, England, for his studies of Murphy's Law, and especially for demonstrating that toast often falls on the buttered side. Public Health –