Math & Science

Can you imagine a time before we dreamed about time travel? The idea of altering an unpleasant future disclosed by an oracle, and the associated paradoxes of Fate, have been with us for millennia; but before H.G. Wells’ The Time Traveller, in 1895, the concept of time travel was wispy and of very little cultural import. Wells’ thrilling tale of adventure catapulted it into

Food fills many of our needs. Hunger is just one. Paul Rozin explains the profound role that food plays in our lives.