An INSIDER story last week highlighted a 3D printer that uses a platform of movable pins to provide support for the created part. The invention eliminates the need for printed supports.

Taking inspiration from the butterfly, Tufts University researchers created light-activated composite devices that execute precise, visible movements and form complex three-dimensional shapes, without the need for wires or other actuating materials or energy sources.

A team from the University of Waterloo is creating robotic exoskeleton legs that use A.I. to make their own steps and control decisions. "Learning" from a collection of sample-strolls around an environment, the system adjusts its movements based on the surroundings it senses.

A Tech Brief featured in our April issue highlighted a battery-free pinpointing system from MIT called Underwater Backscatter Localization. Rather than emitting its own acoustic signals, the “UBL” reflects modulated signals from its environment. The reflections provide researchers with positioning...