Energy - cooling system works on gravity instead of electricity
gravity-powered cooling system that extracts water from the air without using electricity
gravity-powered cooling system that extracts water from the air without using electricity
New slippery surface on water-collectors releases pinned water, which drops off under gravity, unlike earlier systems which need electricity. Extracts water from air. No moving parts, so very low maintenance requirements
Potential Applications: irrigation, washing, cooling buildings on which solar cells are based
