Raka was filming this lad, gliding like a pro on a slippery path, doing his best to keep balance like he was training for the Slippery Olympics. Just when it looked like he had mastered the art of not ...

The reason we can gracefully glide on an ice-skating rink or clumsily slip on an icy sidewalk is that the surface of ice is coated by a thin watery layer. Scientists generally agree that this ...