When you step onto an icy sidewalk or push off on skis, the surface can seem to vanish beneath you. For more than a century, ...
For centuries, people believed ice was slippery because pressure and friction melted a thin film of water. But new research from Saarland University reveals that this long-standing explanation is ...
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 ...