Designer Thibault Sld created this wall of 60 modules loaded with servos, together called Hexi, which undulate in response to movement–whether that’s a touch of the hand, or running past, or something else. Nearby motion-sensing cameras detect where a peson is interacting with the wall, and send a signal to the servos to vibrate accordingly.

You can read a little more about Sld and the project here.