21 February 2018
Vol 3, Issue 15

About The Cover

Cover image expansion

ONLINE COVER Making Skins Crawl. Inspired by snake skins and the art of kirigami, Rafsanjani et al. designed flat plastic sheets that could be transformed into three-dimensional textured surfaces. When the kirigami sheets were wrapped around a tubular soft actuator, buckle-induced directional friction enabled the robotic system to efficiently crawl. [CREDIT: AHMAD RAFSANJANI/HARVARD UNIVERSITY]