URBAN - Future Windows Could Use a Biomimetic Vascular System to Save Energy

Windows, our source of life-giving sunlight indoors, are a menace to your electrical bill. In the summer, windows bleed cold and in the winter they ooze heat. To save energy, researchers want to give window panes a circulatory system that could pump in cool, liquid relief when they get too hot.

http://gizmodo.com/future-windows-could-use-a-biomimetic-vascular-syst