Mechanical Power by Linking Earth’s Warmth to Space

Andy Fell — November 12, 2025 - 11:31am

Engineers at the University of California, Davis, have invented a device that can generate mechanical power at night by linking the natural warmth around us to the cold depths of space. The invention could be used, for example, to ventilate greenhouses or other buildings. The work is described Nov. 12 in Science Advances.

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Mechanical Power by Linking Earth’s Warmth to Space