For all you virtual reality (VR) fanatics out there, the next level of immersion is already in the works. A team of researchers recently demoed a haptic feedback system that could actually simulate the feeling of bumping into walls and buttons.
The mechanism for this, developed by researchers from the Hasso-Plattner-Institut in Potsdam uses electric impulses to trigger your muscles to give the impression of bumping into something.
Researchers essentially placed medical-grade muscle simulators in a backpack and attached the electrodes to forearms and biceps. A minor electric shock activates the muscles, making users feel like they’ve hit a wall.
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Source: Tech 2