How 'parasitic robots' attached to neon billboards could purify city air
By Francesca Perry
Designers in China have developed a concept for “parasitic robots” which attach to city billboards to suck in carbon dioxide and purify the air. As Fast Co Exist explains, the project is hoping to attach these drones to the neon signs in Hong Kong, where they would collect urban pollution in the daytime and use the heat from the neon lighting at night to harvest the carbon dioxide into an energy source.
At the same time, the carbon dioxide would help boost the growth of small plants on the “wings” of the robots, so they would double as minitature farms.
photo credit: <a href="https://www.flickr.com/photos/seeminglee/2348861716/">See-ming Lee 李思明 SML</a> via <a href="http://photopin.com">photopin</a> <a href="http://creativecommons.org/licenses/by-sa/2.0/">cc</a>