PhysicsSmallest subversive: Mathematical fight for our world At stake in the fierce 17th-century debate over a mathematical concept was nothing less than our modern world, says Amir Alexander in InfinitesimalCultureLab
TechnologyPro violinists fail to spot Stradivarius in blind test Could you tell a new violin from a vintage Stradivarius? Top-notch soloists couldn't in a blind test, and they even preferred new instruments News