Study of French postmen's testicles is an Ig Nobel winner

Nappy-changing machine and saliva calculation also triumph in annual science prize

There comes a time in a scientist's life when the surest route to global fame involves a bevy of naked French postmen with thermometers taped to their testicles.

At least that is the case for Roger Mieusset, a fertility specialist at the University of Toulouse, whose unlikely studies have earned him one of the most coveted awards in academia: an Ig Nobel prize.