A new robot, developed by researchers at UC San Diego, can literally walk straight out of a 3D printer without any electronic components. The secret? Compressed air.

Unlike traditional robots powered by electronics, this robot’s body comprises chambers and valves like a mechanical “brain.” When compressed air is released into the system, it flows through the chambers, propelling the robot’s legs to flex and “walk.”

This new, lightweight robot is inexpensive to produce (costing just $20) and could potentially be used in disaster recovery efforts (where electronic components could easily become damaged) or in medical environments.

Currently, this robot must be connected to a compressed air tank; however, its creators envision a future state in which the air tank could be strapped onto the robot like a tiny backpack.

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