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Light Painting Photos That Give a Visual Look at Wi-Fi Signals


Here’s one of the most creative examples of light painting and long-exposure photography we’ve seen — a few techie guys built a special 12-foot-long rod with 80 LED lights that light up depending on how strong a particular Wi-Fi signal is. By walking the stick around and capturing the lights in real time, they were able to photograph “light charts” showing how a particular Wi-Fi signal strength fluctuates in a particular area.

Immaterials: light painting WiFi (via Gizmodo)