Light Painting WiFi Project By Timo Arnall, Jørn Knutsen And Einar Sneve Martinussen

Bell & Dourish (2004, p.2)
Materialising the networked city
WiFi networks are an early example of the technological phenomena that makes up the networked city. As new communication standards and pricing models get introduced WiFi may become obsolete, but it is has been one of the first examples of effective ways of bringing the internet into the city. WiFi also have characteristics that illustrate challenges and possibilities posed by networked cities: WiFi is invisible, complex and increasingly mundane.