#2: Invention Pulls Water Out of Thin Air
Above: This proof-of-concept device, built at MIT, demonstrates a new system for extracting drinking water from the air. The sequence of images at right shows how droplets of water accumulate over time as the inside temperature increases while exposed to the sun.
Using a special material called MOF and the power of the sun, scientists at MIT and the University of California, Berkeley, have developed a way to pull water out of dry air. The invention could pave the way for a solution to water scarcity, a critical problem for nearly half the people on Earth. The key component of the device is a metal-organic framework (MOF), a lattice of organic molecules and metal atoms. A kilogram of the customized MOF used in the device can pull several liters of water out of low-humidity air in desert regions.
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