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"...The eight-story installation, dubbed the Source, consists of 729 spheres suspended from 81 pairs of cables. Each strand stretches the height of the LSE's 105-foot atrium, and every sphere runs on an internal motor. When connected to a server, the 6-inch orbs form abstract patterns and words, everything from a double helix to news from RSS feeds."
More on the Source, including videos, at http://www.greyworld.org/artwork/source/index.html