Friction is a complicated phenomenon involving nonlinear dynamics at different length and time scales. Understanding its microscopic origin requires methods for measuring force on nanometer-scale ...

If there are no shear stresses present, there is no fluid deformation, and the behavior of a fluid is described by the bulk modulus relating the pressure and the compression strain. In the presence of ...

For many years the SAE No. 2 friction machine has been used to measure the coefficient of friction obtained through the interaction of fluid, steel and clutch material. In addition, by forcing energy ...

Expertise from Forbes Councils members, operated under license. Opinions expressed are those of the author. As DevOps nears its 10th anniversary, it has become a movement that is the backbone for ...

Howard Brody, emeritus professor of physics at the University of Pennsylvania, serves up an answer to this question. Tennis can be played on almost any surface that can be made smooth enough to ...