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Two versions of the device designed by MIT researchers, using a strip of metal to block direct sunlight, were built and tested on the roof of an MIT building to confirm that they could provide cooling well below ambient air temperature. Photo by Bikram Bhatia

A new way to provide cooling without power

MIT scientists have developed a new system that offers cooling in extreme sunny days without using power. This approach of passive radiative cooling exploits the...
Cooling System that Works Without Electricity

A Cooling System that Works Without Electricity

Stanford scientists have recently built a cooling system that looks similar to a regular roof. Since 2013, Stanford scientists are working on this project. They...