This scanning electron microscope image shows ultrafine diamond needles (cone shapes rising from bottom) being pushed on by a diamond tip (dark shape at top). These images reveal that the diamond needles can bend as much as 9 percent and still return to their original shape.
Advanced Materials

How to bend and stretch a diamond

18.05.2018 tribonet 114 Views

The brittle material can turn flexible when made into ultrafine needles, researchers find. Diamond is well-known as the strongest of all natural materials, and with that strength comes another tightly linked property: brittleness. But now, […]

Polymer material produced by a 3-D printer includes soft, flexible material (clear or lighter tone) with particles of hard material (black) embedded, in predetermined arrangements. When the material is compressed, its surface become bumpy in a pattern determined by the hard particles.
Advanced Materials

MIT: surface with reconfigurable texture developed

27.10.2017 tribonet 290 Views

Polymer material produced by a 3-D printer includes soft, flexible material (clear or lighter tone) with particles of hard material (black) embedded, in predetermined arrangements. When the material is compressed, its surface become bumpy in […]

climber friction rock chalk
General Topics

Friction: The Key to Rock Climbing

18.07.2017 tribonet 4,876 Views

This article explains the vital role Friction has to play in Rock Climbing. Thanks to Richard Jones and Glen Harding for their input. Friction is the magic ingredient in bouldering and rock climbing. It’s what […]

G. humeralis in French Guiana.Photo credit: Timothy Higham, UC Riverside.
General Topics

How Gecko Feet Got Sticky

30.06.2017 tribonet 171 Views

UC Riverside-led study offers evidence that small morphological changes can lead to large changes in function RIVERSIDE, Calif. – How do key innovations in the animal kingdom arise? To explore this question, gecko expert Timothy Higham, […]