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Nissan develops paint that keeps cars cool in summer heat
(www.asahi.com)
This is a most excellent place for technology news and articles.
Well, they would have invented the specific formulation they're using. I'm sure it's not exactly like this but I wouldn't be surprised if it's the same concept with microbeads.
No one invents anything totally new. It's all adding on to what others have made in the past. Nothing has ever been created from scratch.