Electrically tunable ionic hydrogels use small voltages to switch friction at metal contacts between high-friction and ...

1.1 What is friction? Take this everyday example: when a coffee mug rests on a flat table, the kinetic frictional force is zero. There is no force trying to move the mug across the table, so there is ...

Compressive forces (labeled F and F/2) keep the three inner rings in contact with the driveshaft. The ability to produce smooth, precise, and accurate linear motion is key to many manufacturing and ...

Nanomachines will depend on our knowledge of friction, heat transfer and energy dissipation at the atomic level for their very survival. In the scramble to revolutionize the world with nanotechnology ...

This acts when an object is at rest and prevents it from starting to move. It increases up to a certain limit as you apply an external force to initiate motion. This acts when an object is already in ...