We’ve all been there: You put your hand on a metal surface like a bench, slide or even a smartphone on a brilliantly sunny day, only to find that it's too hot to touch. An intriguing piece of research, though, has found a way to stop metal from heating up like this in sunlight.
by José Lourenço via Facebook at August 19, 2015 at 08:32AM
http://ift.tt/1TQGNd5
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