MATERIAL1.SKY BLUE GLASS
The special features and uniqueness of SKYBLUE come from a technology called electrochromic. The color of glass changes smoothly from blue to clear. The physics behind this is not so complicated: By sandwiching special gel ink between two panes of glass, the color change results when a tiny current of electricity flows through the gel: The original color is blue, but it turns a transparent yellow. This system uses only a small amount of electricity, and moreover the electricity flows only when the color is changing. So SKYBLUE is an environmentally-friendly device compared with most other electronics.