We’ve all heard about ‘clever’ animals... learning to use tools, communicate complex information and solve problems. But can animals count?
I’m sure you know the idea: everyone on Earth is connected to every other person by six or fewer links. The idea was first proposed in 1929, but is six still the correct number of links in today’s connected world?
You’ve just flown halfway across the globe and the clock tells you it’s morning but your body tells you it’s bedtime. You’re tired and dazed. You can’t think straight and it take days to start feeling normal again. Jet lag. Is it just an annoyance, or something more serious? And among the many touted remedies, could a new smartphone app be the answer?