World Expo 2008 Digital Water Walls

Description

This wall can display scrolling text or large images, and becomes even an automatic door. This technology was created by an MIT students. If you are concerned that is a huge waste of water, think again my friend! The walls of work in 100% recycled water and reduce the need for air conditioning. This pavilion is set to be presented at Zaragozas World Expo in 2008, an event in which water will be the topic of focus.  Indeed, we have seen this before, in the North American Auto Show... Check it out:
References: and engadget.