Illustration of the addressable wireless folding concept. Illustration of the addressable wireless folding concept. A time-varying magnetic field [B(t)] is produced by passing current [I(t)] through a source coil. This field induces a voltage on the receiver coil(s) of the purely passive self-folding device/robot and initiates folding at desired joints. Folding at single joints selectively and collective folding at any combination of joints can be realized. Mustafa Boyvat et al. Sci. Robotics 2017;2:eaan1544 Copyright © 2017 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works