This Birdhouse Will Give You Free Wi-Fi For Reducing Air Pollution - Popular Science
 

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Popular Science
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This Birdhouse Will Give You Free Wi-Fi For Reducing Air Pollution
Popular Science
The devices are mounted to trees around the city, and LED lights indicate air pollution levels in the immediate area. When pollution levels dip below a specific threshold, the roof of the device glows green indicating that free Wi-Fi is available to ...





Courtesy of WestNet City Wi-Fi
www.westnet.ca