To show me his technological sleight of hand, Friesen invites me to a hillside house in Berkeley, California on a sunny afternoon. There, in a shaded courtyard, we each sample a cup of water that flows from a drinking fountain. The water is cool and delicious – and it was made out of thin air. Literally.
Nanomaterials – and physics, of course – played a role too. The drinking fountain is fed by a flexible pipe that leads to the house’s roof.
There sit two Friesen’s devices, called Source Hydropanels. Each looks like solar panel mounted atop a metal box. The system extracts moisture out of the air at a rate of as much as five liters per day.
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