Engineering

A light-powered hydrogel launcher

An international team of mechanical engineers has developed what they call a fracture-driven, power-amplified hydrogel launcher. They have published their discovery in the journal Nature Materials.

Robotics

Picotaur—the unrivaled microrobot

Picture this: hundreds of ant-sized robots climb over rubble, under rocks and between debris to inspect the damage of a fallen building before human rescuers explore on-site.

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