Materials scientists are measuring the rolling friction of tiny, micrometer-sized particles. These measurements permit them to better understand everyday products such as concrete.

Learning the 'effective' notions of static and sliding friction ... We might naively expect rough surfaces to show greater friction, for example, yet it is sometimes higher between perfectly ...

ETH Zurich scientists measure rolling friction in micrometer-sized particles, enhancing understanding of suspensions in ...

Sliding friction, which is weaker than static friction ... International Journal of Design Engineering, "Friction in nature"). Examples from nature and technology illustrate various orders of ...

500 years after the first studies on friction, the concepts of superlubricity, wearless sliding and friction control ... tests take place — using, for example atomic force microscopes (AFMs ...

Friction is a force between two surfaces that are sliding, or trying to slide, across each other. For example, when you try to push a book along the floor, friction makes this difficult.

Friction between two sliding interfaces historically has been ... that shear movement occurs under all shear forces—so, for ...

By contrast, in handball the observed mean value was 0.95, ranging from 0.78 to 1.06. Conclusions In view of sliding friction, all sample measured basketball floors were in accordance with the DIN ...

Suspensions are widespread in industry and everyday life. By a suspension, materials scientists mean a liquid in which tiny, ...