Invisible signals are all around us, and now we can finally see what weve been missing. Data visualization artist Nickolay Lamm created psychedelic images of the cellphone signals that live in the air, but are invisible to us. But thanks to Danilo Erricolo, Professor of Electrical and Computer Engineering, University of Illinois at Chicago and Fran Harackiewicz, Professor of Electrical and Computer Engineering, Southern Illinois University Carbondale who consulted on the project, theres quite a bit of science behind the hilly terrain and color explosion.