Oslo designers visualize their city's invisible Wi-Fi signal patterns with stunning paintings made of light.
Wi-Fi signals at night
Timo Arnall, Jorn Knutsen, and Einar Sneve Martinussen, Ph.D. candidates from the Oslo School of Architecture and Design, have found a unique way to visualize invisible Wi-Fi signals in their Norwegian city by light painting signal strength in long-exposure photographs.
To create the mesmerizing visuals, the artists placed a camera nearby as they took a Wi-Fi-equipped rod with 80 LEDs to various locations at nighttime in the Oslo borough of Grunerlokka. The lights illuminate at varying levels depending on signal reach.