Cambridge, Masachusetts: Last night saw the presentation of the Ig Nobel awards 2007. Awarded by the Annals of Improbable Research magazine, the prizes recognise 'achievements that first make people laugh, and then make them think'
Ig Nobel prize 2007Photograph: Charles Krupa/APDan Meyer demonstrates sword swallowing after he and radiologist Brian Witcombe were awarded a prize for their report Sword Swallowing and its Side EffectsPhotograph: Stan Honda/AFPIg Nobel prize 2007Photograph: Charles Krupa/APBrian Wansink of Cornell University demonstrates his Ig Nobel-winning bottomless bowl of soupPhotograph: Stan Honda/AFPJohanna E.M.H. van Bronswijk from Eindhoven University of Technology accepts her prize, awarded for completing a census of all the mites, insects, spiders, pseudoscorpions, crustaceans, bacteria, algae, ferns and fungi commonly found in people's bedsPhotograph: Stan Honda/AFPReal Nobel laureates Craig Mello (l), Roy Glauber (c) and Dudley Herschbach sample some vanilla ice-cream flavoured with an extract of cow dung. Mayu Yamamoto from the International Medical Centre of Japan was awarded a prize for her work on the extractPhotograph: Stan Honda/AFPA moment of science: Chemists Joost Bonsen (l) and Daniel Roseberg perform during the ceremonyPhotograph: Stan Honda/AFPReal Nobel Laureate Dudley Hershbach gives a nano-lecture during the ceremonyPhotograph: Stan Honda/AFP