Wiki Tag: what is friction

Friction

22.11.2016

Friction Definition Friction is a force acting opposite to the direction of relative motion. Friction rises on the interface between bodies, but may also develop within the body.Examples of the latter include air and […]

Ice Lubrication and the Forbidden City

07.02.2016

Forbidden City is a historical symbol of China, located in the center of Beijing and was constructed between 1406 and 1420 . It served as an imperial palace for almost 500 years and consists of [...]
Some open problems in adhesion (of rough surfaces)

30.01.2018

By M.Ciavarella, A. Papangelo. Politecnico di BARI, Italy. Adhesion for ‘‘soft’’ bodies shows instabilities like in the simple case of a single sinusoid even in the so called JKR regime (Johnson 1995) which leads to [...]
Mixed Lubrication: Wear Particles Size and Friction Evolution

10.04.2017

Wear in tribological contacts results in generation of wear particles of various sizes and shapes and these particles impact the performance of the mechanical devices. These particles may create additional mechanical damage or act as [...]
No Friction - Bad Earthquake

02.05.2017

It is a common trope in disaster movies: an earthquake strikes, causing the ground to rip open and swallow people and cars whole. The gaping earth might make for cinematic drama, but earthquake scientists have [...]
Decrease Friction with Hydrogen Ions

13.06.2016

Currently, a large portion of consumed energy is used to overcome friction. Design of low friction components is a primary goal in building a sustainable society. Superlubricity, the state of ultralow friction (<0.01), has already [...]