Take a hot shower and the chances are that the bathroom mirror will mist up. Glasses and camera lenses can also suffer in humid conditions. And it can be dangerous when a car's windscreen clouds over. Various methods, including sprays, materials and heating, have been used with varying degrees of success to deal with the problem. Now a Chinese team has come up with a new idea.rnJunhui He of the Chinese Academy of Sciences, Beijing, and his colleagues have created a cheap anti-mist coating. They estimate one square metre of glass will cost only a few cents to treat.
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