At a busy street crossing, people wait for the signal to change. When one person steps out first, others soon follow. Scientists in Amsterdam have found that this same kind of behavior happens at a ...

Learn how to analyze tipping a block and calculating friction in this physics tutorial. Step-by-step explanations cover forces, torque, and frictional calculations, helping students understand the ...

For the first time, physicists in China have virtually eliminated the friction felt between two surfaces at scales visible to ...

Of course, the study of friction is nothing new; and to explain the 20th-century crisis, and to understand where tribology ...

The question is not how to eliminate friction. The question is how to manage it so it becomes traction and traction becomes forward motion.