Scientists have developed smart windows that keep homes warm in winter and cold in summer.
Scientists at Oxford University have developed a smart coating for window glass that reflects heat in the summer and allows heat to enter in the winter, which can reduce the harshness of both seasons.
The amount of heat in the room can be controlled by the layer applied on the window glass.
The glass of the window is covered with a layer of chalcogenide material which changes its position under heat. In winter, it absorbs infrared rays from the sun and dissipates its heat into the room. Silicon does the opposite in the cold and helps keep the room cool. In this way the window works under the changing weather and reduces the temperature of the room by one third in summer.
But interestingly, scientists have also installed a transparent heater that controls heat and cold to varying degrees. There are times when glass can return 30 to 70 percent of its heat. But the biggest advantage is that electricity bills can be dramatically reduced to keep buildings around the world warm and cool.
