Welding is going hands-free. A mind-controlled robot can weld metal together after receiving mental instructions from its operator.

The person controlling the robot wears an electroencephalography (EEG) cap, which measures the brain’s electrical activity via the scalp. They then look at a screen that has several pre-selected metal seams for the robot to weld.

Each option on the screen flickers in turn and the operator stares at their choice. When their chosen option flickers, it generates a specific electrical response in the brain detectable by the EEG. …