Fingertip friction on glass surface

Researchers report that exposing a glass plate to ultrasonic waves can help reduce up to 95% of the friction felt by a fingertip sliding along the plate, and that this interaction is likely caused by the finger bouncing on an air layer trapped between the skin and the glass, findings that may have potential implications for touchscreen technology. - Read at PNAS.org

Article #16-03908: “Partial squeeze film levitation modulates fingertip friction,” by Michaël Wiertlewski, Rebecca Fenton Friesen, and J. Edward Colgate.