Frictional experiment: artist’s impression of the metainterface between a rigid piece of glass (top) and a metasurface (bottom). The textured regions are where the glass and metasurface are in contact ...

Friction usually announces itself through contact. A chair scraping across a floor, a tire gripping asphalt, a hand sliding over fabric. For centuries, the rule seemed simple: press harder, and ...

The upper figure shows the viscoelastic toy model proposed here, characterized by only six independent parameters. Surprisingly, this simple mechanical model produces complicated system dynamics, as ...

(Nanowerk News) If you even bother to think about friction at all, you might think about rubbing your hands together to warm them up. But friction is a big problem out in the world. Parts that rub ...