Einar Sneve Martinussen, Timo Arnall and Jørn Knutsen just released a great WIFI lightpainting video. Music score by Phonophani.
Immaterials: Light painting WiFi from Timo on Vimeo.
This project explores the invisible terrain of WiFi networks in urban spaces by light painting signal strength in long-exposure photographs.
A four-metre long measuring rod with 80 points of light reveals cross-sections through WiFi networks using a photographic technique called light-painting.