Pretty pollution: The discolored wisps are indicators of pollution. Pretty, huh?Courtesy Birmingham Museums & Art Gallery An artist uses white cement treated with a light-sensitive photo-catalytic nano coating to make pollution pretty. As the cement is exposed to the air, the areas not protected by the nano coating begin to discolor, revealing a delightful design, as well as its nasty culprit.
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I think nano is pretty cool!
i think that that was pretty cool also nice job
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