Humans have been making fire by friction for centuries, but it's not easy. Cyndi Monaghan/Moment via Getty Images Fire by friction is a testament to human ingenuity, contributing to the development of ...

CAMBRIDGE, England, July 22 (UPI) --Scribbled pages in a notebook of Leonardo da Vinci, previously dismissed as nonsense, have been revealed as the polymath's earliest musings on the laws of friction.

Learn how tension and friction interact when an object moves at constant velocity. This video breaks down the force balance, explains why acceleration is zero, and shows how physics principles apply ...

Friction is an intrinsic physical phenomenon to curling. Without it, objects in motion would move endlessly, without slowing down. This would cause many safety-related problems: Cars or trains could ...

A, Driving locomotion of a rectangular plate on a frictional surface through excitations of elastic waves by pulsed optical absorption. Table: relationships between motion states of the plate, ...

Sticky: The Secret Science of Surfaces Laurie Winkless Bloomsbury Sigma (2021) What links geckos’ feet, plate tectonics, the winter sport curling and spacecraft re-entering the atmosphere? For ...

TimesMachine is an exclusive benefit for home delivery and digital subscribers. About the Archive This is a digitized version of an article from The Times’s print archive, before the start of online ...