The Ig Nobel Prizes honour achievements that first make us laugh, then make us think. We take a look at this year’s winners: from the benefits of pizza to the temperature of French postal packages!

The Ig Nobel Prizes honour achievements that first make us laugh, then make us think. We take a look at this year’s winners: from rollercoaster medicine to Voodoo in the workplace!

The Yanny vs Laurel audio illusion, plumes of water from Europa, the origin of the amphibian-killing fungus, using ice cores to study Ancient Rome’s economy, and clever magpies learn the calls of other birds.