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MIT researchers invented cooling technology that doesn’t need electricity (

Scientists have managed to create passive cooling tech that could keep food fresh without electricity.

Scientists with MIT have created a passive cooling tech that could revolutionize how we keep things cold. The new tech, which relies on a three-layer design, was showcased in a new press release. It only requires water, and researchers have used it to cool ambient temperatures by up to 19 degrees Fahrenheit.

The top layer of the device is made of an aerogel with air enclosed in multiple cavities. This insulating material allows water vapor and infrared radiation to pass through. The researchers outlined how it works in a press release from the university. The secondary layer is made of hydrogel. The cavities of this layer are where the water resides. Finally, the last layer is a mirror.


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