The 2007 Ig Nobel Prizes have just been announced. My favourites: A toss-up between “Linguistics: Juan Manuel Toro, Josep B. Trobalon and Nuria Sebastian-Galles, for determining that rats sometimes can’t distinguish between Japanese, played backward, and Dutch, played backward” and “Aviation: Patricia V. Agostino, Santiago A. Plano and Diego A. Golombek, for discovering that hamsters recover from jetlag more quickly when given Viagra.”