Designer and visual artist Timo Arnall wanted to explore the "invisible terrain of Wi-Fi networks in urban spaces." That's all well and good, but how would you visualize something that's invisible?
Arnall, who was already working on how to visually capture RFID fields, adapted some of his techniques for Wi-Fi, using long exposure photography and a measuring stick about thirteen feet long. On the stick he — along with his fellows Jørn Knutsen and Einar Sneve Martinussen — fastened 80 lights and hooked it all up to a rig that would determine the signal strength in an area. What you're left with are Wi-Fi "fences," and they look awesome.
Check it out in the video below, and be sure to click through the gallery for shots of the lit-up landscape and the rig the team used.