Light Painting WiFi is the creation of Timo Arnall, Jorn Knutsen, Einar Sneve Martinussen. Their work explores the invisible terrain of WiFi networks in Oslo urban spaces.
They put together a four-meter tall measuring rod with 80 points of light reveals cross-sections through WiFi networks using a photographic technique called light-painting. By the simple action of walking down streets, they are able to pick up the thousands of WiFi signals and with the help of a long exposure camera, transform them into wall, barriers of lights.
Beyond the art aspect of this work, this technique has also a research purpose as the data collected is used to evaluate the quality of the Oslo wireless networks.
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