Connecting Light, a digital art installation created by New York-based digital arts collective YesYesNo, takes place across the 73 miles of Hadrian’s Wall World Heritage Site. The installation consists of over 400 light-filled, six-foot-in-diameter balloons transmitting messages from one-to-another, with LED lights changing color in response. People can interact with the light-lined wall by sending personalized messages at a number of viewing locations. As messages travel through it, the installation becomes a line of pulsating colors, illuminating what was once a protective border.
This installation, which is part of the London 2012 Festival, is open to the public from Friday, August 31st to Saturday, September 1st, 2012.
source: Connecting Light.