Folding Robots

Science Daily: Folding robots: No battery, no wire, no problem - Wireless magnetic fields and actuator 'muscles' allow folding robots to move without batteries

summary - Folding robots based on origami have emerged as an exciting new frontier of robotic design, but generally require onboard batteries or a wired connection to a power source, limiting their functionality. Scientist have now created battery-free folding robots that are capable of complex, repeatable movements powered and controlled through a wireless magnetic field.