Visualizing WiFi Signals with Light

Have you ever wondered what the WiFi signal looks like around your office, school, or local café? In this video, Timo ArnallJørn Knutsen, and Einar Sneve Martinussen show you the invisible. And they pulled this off by building a WiFi measuring rod, measuring four meters in length, that can visualize WiFi signals around Oslo, Norway with the help of long exposure photography.

What’s fascinating to see is how the WiFi signals vary across the city. Away from residential buildings, the drop-off in WiFi strength is steep. On the other hand, the WiFi signal is dense around commercial and academic buildings. The amazing visualization gives us a glimpse into the complex relationships between WiFi networks and the physical environments underpinning them. For a deeper read about this project, see this blog post.

Eugene Buchko is a blogger and photographer living in Atlanta, GA. He maintains a photoblog, Erudite Expressions, and writes about what he reads on his reading blog.

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