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Source: Pexels

This Paint Cools Your Home With The Power Of Sunlight

By Tessa Love

It may seem contradictory, but soon you may be able to cool your home with sunlight. Israeli company SolCold has developed a high-tech paint based on a process called 'laser cooling' to offset the cost – economically and environmentally – of using air conditioning in hot summer months. 

Laser cooling is the process by which hitting specially designed materials with a laser can cool them by up to 150ºC. The molecules in these materials "absorb photons whose light is of one frequency while spontaneously re-emitting higher-frequency photons, which also carry more energy," according to New Scientist. Since energy is lost in this exchange, the temperature of the material goes down.

Sunlight isn't as powerful as a laser, but Yaron Shenhav of SolCold decided to see if he could adapt this laser cooling process so it worked with the sun.