Smart curtains react to light using nanotubes

Smart curtains do not need you to actually get up from your favorite lounging chair to close or open it, as it has the capabilities of preventing too much light from coming in whenever it is exposed to light. This was made possible thanks to the efforts by the folks over at the University of California Berkeley, who have managed to come up with a new kind of material that allows the nanotubes embedded within to activate whenever they are exposed to light.