Solar-Powered Moisture Vaporator
This handy device can pull 3 liters of water per day out of the atmosphere. There's plenty; there are an estimated 13 trillion liters of water just waiting to be used.
To find an all-purpose solution, researchers led by Omar Yaghi, a chemist at the University of California, Berkeley, turned to a family of crystalline powders called metal organic frameworks, or MOFs... The networks assemble in a Tinkertoy-like fashion from metal atoms that act as the hubs and sticklike organic compounds that link the hubs together.
The system Wang and her students designed consists of a kilogram of dust-sized MOF crystals pressed into a thin sheet of porous copper metal. That sheet is placed between a solar absorber and a condenser plate and positioned inside a chamber. At night the chamber is opened, allowing ambient air to diffuse through the porous MOF and water molecules to stick to its interior surfaces, gathering in groups of eight to form tiny cubic droplets. In the morning, the chamber is closed, and sunlight entering through a window on top of the device then heats up the MOF, which liberates the water droplets and drives them—as vapor—toward the cooler condenser. The temperature difference, as well as the high humidity inside the chamber, causes the vapor to condense as liquid water, which drips into a collector. The setup works so well that it pulls 2.8 liters of water out of the air per day for every kilogram of MOF it contained, the Berkeley and MIT team reports today in Science.
As Star Trek fans know, the only way to farm on the fictional desert world of Tatooine was to use moisture vaporators to pull water out of the air.
For human purposes, however, the water of Tatooine was only marginally accessible. The atmosphere yielded its moisture with reluctance. It had to be coaxed down out of the hard blue sky -- coaxed, forced, yanked down to the parched surface.
Luke Skywalker was twice the age of the 10-year-old vaporator, but much less secure. At the moment he was swearing softly at a recalcitrant valve adjuster on the temperamental device.
(Read more about Lucas' vaporator)
Scroll down for more stories in the same category. (Story submitted 3/27/2017)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 0 )
Related News Stories -
Dune Fans! Power Your Devices With Sweaty Shirts
Yet another power source from humans.
Zero Mass 'Vaporators' Pull Drinking Water From The Air
Did you think of Star Wars?
Integrated Circuits Printed Right Onto Fabric!
'...a shirt that displayed email on its sleeve. - Margaret Atwood, 2003.
Drones Guided By The Mind Alone
'His treads left no tracks upon the floor...' - Clifford Simak, 1961.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
Save Your Brain's Connectome, Upload Yourself Elsewhere
'You've got remote storage. How regular is the update?'
TMS Decreases Belief In God, Increases Belief In Immigrants
'... setting up the same currents, the same basic ideas, in them all.'
Loomo Mini Transporter Robot Companion You Ride On
'Slowly the [robot] horse raised its head, wiggled its ears, blinked twice, gave a tentative whinny.'
Soft Robotics - Now With 3D Printed Sensors!
'A series of chemelectric afferent nerve-analogues, which permitted it to gauge to an ounce the amount of pressure necessary to snap a bone...'
AI Tool Lynx Insight And The Cybernetic Newsroom
'The structure,... was once a great homeostatic newspaper, the New York Times. It printed itself directly below us...'
Espresso Telescope Searches For Exoplanets
'These instruments were the wonderful ones our astronomers had perfected.'
Dune Fans! Metal-Organic Frameworks Make Science Fiction Real
'Dew collectors,' he muttered, enchanted by the simple beauty of such a scheme.
Manned Maneuvering Unit From 1984
'The glittering little rocket bolted to the black iron behind him.'
Astronaut Gets Younger In Space
'So what we're looking for now is not an antibiotic - an anti-life drug - but an anti-agathic, an anti-death drug...'
Blockchain Used To Verify Election Results
'Any adult could punch into the phone his or her code, followed by a yes or no.'
IJOP Integrated Joint Operations Platform China's Minority Report?
'All day long the idiots babbled, imprisoned in their special high-backed chairs...'
HushMe Bluetooth Device Reinvents The Hush-A-Phone
'Talking into a hush-a-phone which he had plugged into the telephone jack...'
Ultrathin Brain Needle Developed At MIT
Putting drugs into a selected cubic millimeter within the living brain.
Tesla Semi Truck Now At Work
Why wait? Tesla Semi now hard at work.
Illustris: The Next Generation Of Universe Simulation
'This digital device was ... A machine able literally to contain the Universe Itself...'
Scaly Yet Soft Robotic Snake
Love those robotic sneks.
More SF in the News Stories
More Beyond Technovelgy science news stories