Using a 4m rod complete with 80 LEDs these guys at Oslo school of Architecture and Design explore the invisible terrain of WiFi networks in the Urban Hertzian space! The LEDs help create the line graph that shows the signal strength of a wireless network.
They are using a photographic technique called light-painting which employs a long exposure shot plus a source of artificial light such as a torch for example (or LEDs in this case) to ‘paint’ additional stuff into the shot. This ‘stuff’ could be anything from your name to a projected image.
But anyway I thought this was a brilliant piece of light painting, which previously has been an area of photography I have over looked. As I have felt previous uses have just been a bit dull.
The Hertzian space containing the vast majority of the data we consume everyday is a very intriguing thing. We cannot see it, yet it is there and in a sense we are feeding off it! I had a project to visualise a spectrum of the Hertzian space back in first year and I chose WiFi. I went around an area in Plymouth and took readings of different WiFi signals making an approximate map representing the WiFi networks.
During the brainstorming of how I was going to represent an aspect of the Hertzian space I can remember wishing I could somehow show strength of a signal in a similar way to how these guys have done – but I did not think of light-painting. Genius. Great thinking guys! Very effective as well. Thanks for helping us to open our eyes and visualise the WiFi signals that we all take for granted!