These new smart curtains respond to light and don't need batteries

Summary : Scientists have made a new material out of carbon nanotubes that moves in response to as little light as that from a torch.

Persuasive : In modern society, high class houses are increasing as technology is improving. These curtain will surely fit for those kind of houses and make humans life more comfortable.

http://www.sciencealert.com.au/news/20142306-25718.html