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Technology

Soft Robotics Using Variable Stiffness Actuators

Quick fact

Some variable stiffness actuators can change their rigidity by a factor of over 100 times in milliseconds, using materials that respond to electric fields or temperature.

Why this is interesting

Imagine a robot that can be as soft as a marshmallow to safely hold an egg, then instantly stiffen to drill a hole. How can one machine be both floppy and rigid on demand?