The mystery of motion sickness - Rose Eveleth.

Although one third of the population suffers from motion sickness, scientists aren't exactly sure what causes it. Like the common cold, it's a seemingly simple problem that's still without a cure. And if you think it's bad on a long family car ride, imagine being a motion sick astronaut! Rose Eveleth explains what's happening in our bodies when we get the car sick blues.

TED: Hamish Jolly: A shark-deterrent wetsuit (and it's not what you think).

Scientific breakthrough, the kind that can potentially save lives, can sometimes be lying right out in the open for us to discover, in the evolved, accumulated body of human anecdote, for example, or in the time-tested adaptations that we observe in the natural world around us. Science starts with observation, but the trick is to identify the patterns and signatures that we might otherwise dismiss as myth or coincidence, isolate them, and test them with scientific rigor. And when we do, the results will often surprise.