Air-con without electricity

Israel’s Green Kensho has developed an outdoor air conditioner that needs no electricity. It silently blows out a jet of freezing (easily available) nitrogen gas at -10C (14F) that cools the surrounding area with no pollution. The first models are to be piloted in August at six Tel Aviv restaurants.

https://nocamels.com/2022/08/worlds-first-nitrogen-powered-air-con/

https://unitedwithisrael.org/cool-story-israelis-invent-electricity-free-air-conditioner/

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