A building with waterfall walls that can display images and words is being designed by a team of MIT architects and engineers.

The effect is created by a row of valves spaced along a pipe suspended in the air. A computer controls the opening and closing of the valves. This produces a curtain of falling water similar to a waterfall, with gaps at specified locations. The entire surface becomes a liquid display that continuously scrolls downward. The resulting pattern of air and water droplets resembles the digital pixels used to create images on computer monitors and other displays.