Polarized windows have already been mentioned and on that note comes the possibilities tied up with the new alternative powered energy solution. And perhaps among the first ones to take the stage are these light powered curtains, another ingenious invention which turns carbon nanotubes which would eventually be a light source once they collect the proper amount of solar energy.
The nanotubes are apparently installed on windows and absorb the proper amount of heat and transfer it to a thin light-activated material of plastic polycarbonate and layered carbon nanotubes on its surface.
The material expands, which makes it and the nanotube layers bend. When the light is removed, the material straightens back out.
The scientists from the University of California Berkeley tested the material with a variety of light wavelengths and discovered that even the smallest amount of light creates movement in the material.