tribology of earthquakes
General Topics
Tribology of Earthquakes

Earthquakes are the sudden shaking of the ground caused by seismic waves passing through Earth’s rocks. These seismic waves occur when energy stored in the Earth’s crust is released suddenly, typically when large masses of […]

friction real aparent area
General Topics
Guidance Notes on Friction

In dry sliding between a given pair of materials under steady conditions, the coefficient of friction may be almost constant. This is the basis for two EMPIRICAL Laws of Sliding Friction, which are often known […]

graphene structure
Advanced Materials
The Science of Friction on Graphene

Sliding on flexible graphene surfaces has been uncharted territory until now, Graphene, a two-dimensional form of carbon sheets just one atom thick, has been the subject of widespread research, in large part because of its […]

friction tuning
Advanced Materials
Vanishing Friction

Illustration: Christine Daniloff/MIT and Alexei Bylinkskii A new technique tunes friction between two surfaces, to the point where friction can vanish. MIT researchers developed a frictional interface at the atomic level. The blue corrugated surface […]