Smart window keeps homes cool in the summer and warm in the winter

[السياسي]

The design keeps down heating and air conditioning costs by blocking out unwanted sunlight, according to scientists from South China University of Technology (stock image).

http://www.dailymail.co.uk/sciencetech/article-5913859/Incredible-smart-window-keeps-homes-cool-summer-warm-winter.html?ITO=1490&ns_mchannel=rss&ns_campaign=1490 ]قرااء المزيد ..... [/url]