After each experiment, we found indications of localized damage on the fault surface, including gouge and grooves (Fig. 1b–d). The grooves began with very sharp edges (Fig. 1c) and widened with ...

(Nanowerk News) An interdisciplinary research team of the Institutes of Physical Chemistry and Physics of the University of Freiburg and the Max Planck Institute of Biophysics in Frankfurt-am-Main has ...

I learned to respect friction, as a phenomenon with many nuances, when I was a graduate student. One day, while teaching a problem session in elementary mechanics, I unwisely invented a new problem to ...