Sunday , 26 May 2019
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Scientists create transparent sun filter

Friday, 21 July 2017 Most people have experienced a sunburn caused by ultraviolet radiation whose intensity exceeds the skin’s natural protective ability to tan. Moreover, ultraviolet radiation can damage many polymers (plexiglass, polyethylene, polypropylene, etc.), a phenomenon known as ultraviolet ageing. Various filters and additives to polymer compositions and suntan …

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