Illinois at Urbana–Champaign and Christopher Chabris of Harvard University, for demonstrating that when people pay close attention to something, it's all too easy to overlook anything else – even a woman in a gorilla suit. (See inattentional blindness). Public Health – Presented to Jillian Clarke of the Chicago High School for Agricultural Sciences, and then Howard University, for investigating the scientific validity of the five-second rule about whether it's safe to eat food that's been dropped on the floor. 2005 The ceremony took place on 6 October 2005. Agricultural History – Presented to James Watson of Massey University, New Zealand, for his scholarly study, "The Significance of Mr. Richard Buckley's exploding trousers". Biology – Presented jointly to Benjamin Smith of the University of Adelaide, Australia and the University of Toronto, Canada and the Firmenich perfume company, Geneva, Switzerland, and ChemComm Enterprises, Archamps, France; Craig Williams of James Cook University and the University of South Australia; Michael Tyler of the University of Adelaide; Brian Williams of the University of Adelaide; and Yoji Hayasaka of the Australian Wine Research Institute; for painstakingly smelling and cataloging the peculiar odors produced by 131 different species of frogs when the frogs were feeling stressed. Chemistry – Presented jointly to Edward Cussler of the University of Minnesota and Brian Gettelfinger of the University of Minnesota and the University of Wisconsin–Madison, for conducting a careful experiment to settle the longstanding scientific question: can people swim faster in syrup or in water? Economics – Presented to Gauri Nanda of the Massachusetts Institute of Technology, for inventing Clocky, an alarm clock that runs away and hides, repeatedly, thus ensuring that people get out of bed, and thus theoretically adding many productive hours to the workday. Fluid Dynamics – Presented jointly to Victor Benno Meyer-Rochow of International University Bremen, Germany and the University of Oulu, Finland; and József Gál of Loránd Eötvös University, Hungary, for using basic principles of physics to calculate the pressure that builds up inside a penguin, as detailed in their report "Pressures Produced When Penguins Poo—Calculations on Avian Defecation". Literature – Presented to the Internet entrepreneurs of Nigeria, for creating and then using e-mail to distribute a bold series of short stories, thus introducing millions of readers to a cast of rich characters—General Sani Abacha, Mrs. Mariam Sanni Abacha, Barrister Jon A Mbeki Esq., and others—each of whom requires just a small amount of expense money