Researchers at MIT has found a way to passively recover sound through videos of objects.  Sound from speech or music causes objects such as a glass of water or a plant.  Video recordings of these vibrations, normally invisible to the naked eye, can be used...

I've seen projection mapping before but what Bot & Dolly was able to achieve in this performance piece is mind blowing.  Through the utilization of projection mapping and two simple moving surfaces they set out to explore, "the synthesis of real and digital space"....