A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Chaac Ha Dew Collector ala Dune
Students from the Yucatan region of Southern Mexico have invented a portable water accumulator they call the “Chaac Ha”. It is designed to gather dew for drinking water.
(Chaac Ha Dew Collector)
Designed to provide regular, clean water to rural Mexican communities, the award-winning water collector is capable of gathering 2.5 liters of water from dew alone in one night.
Drawing its name from the Mayan god of rain, the Chaac Ha takes its form a spider web. Presenting a collapsible design for easy portability, the water collector makes use of natural processes which helps in sustaining the environment.
(Chaac-Ha dew collector diagram)
First, the form and material of the rainwater catching membrane is inspired by the way bromeliads funnel water toward a central pool. Bromeliads are epiphytes, which mean that they grow on other plants and derive their moisture and nutrients from the air and rain. See the Ask Nature database for more information: Leaves capture water: bromeliads.
Bromelaid leaves are also hydrophobic, with microscopic irregularities that reduce adhesion and allow water to channel into a collection reservoir. The Chaac Ha uses Teflon to achieve a similar effect.
Science fiction writer Frank Herbert wrote about this same idea in his remarkable 1965 novel Dune. Most of the novel takes place on the planet Dune, which has no liquid surface water at all. In order to plant vegetation, special materials are used to create dew collectors, to gather even the tiniest amount of moisture.
"Each bush, each weed you see out there in the erg," she said, "how do you suppose it lives when we leave it? Each is planted most tenderly in its own little pit. The pits are filled with smooth ovals of chromoplastic. Light turns them white. You can see them glistening in the dawn if you look down from a high place. White reflects. But when Old Father Sun departs, the chromoplastic reverts to transparency in the dark. It cools with extreme rapidity. The surface condenses moisture out of the air. That moisture trickles down to keep our plants alive."
(Read more about Frank Herbert's dew collectors)
In the dew collectors of Herbert's imagination, a special material changes from light to dark in order to pull moisture out of the air.
Via ecohunk and Sustainability Workshop; thanks to DuneSF for the tip on this story.
Scroll down for more stories in the same category. (Story submitted 8/27/2015)
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 -
OK, NASA 3D Printer Of Food Not Yet Star Trek Food Synthesizer
Maybe not, but we're seeing definite progress.
BlueNalu Yellowtail Might Be Your First Lab-Grown Meat
Vat-grown nigiri sushi?
Beijing HaiDiLao Robotic Hotpot Restaurant Now Flavored By Artificial Intelligence
'Kantos Kan led me to one of these gorgeous eating places where we were served entirely by mechanical apparatus.' - Edgar Rice Burroughs, 1912.
Plants of the Future - What Should They Be Like
'He almost choked in his astonishment. Mashed potatoes and brown gravy!' - Robert Heinlein, 1941.
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.
Implantable Covid-Detecting Microchip Developed By DARPA
'Employees... were implanted with advanced microprocessors...'
SpaceX Requests Starlink For Starship
'... sweating, heat-blistered engineers at every interplanetary radiograph station on three planets.'
SF Writers Predicted John Deere Autonomous Tractors
'The huge plow... seemed to shake itself - and began to move back southward.'
DARPA Funding AI Fighter Pilots
'Cultured brains on a slab.'
StoryFile To Help William Shatner Become Landru
"I am Landru. I am he! All that he was, I am."
Telehealth Drones To The Rescue
'A shadow passed over him, and he looked up.'
Capture Asteroids In A Bag
'... just as a small boy catches a swift ball in his cap.'
Sony Pocket Air Conditioner Is Phil Dick's Idea!
'... he went to the hall closet to get his pith helmet and his mandatory cooling-unit.'
Is It Possible To GROW Planes And Vehicles?
'These are your rudimentary seed packages...'
Guard Dog Robot Security Check
'We still use people at the main gates, but here it's an automated sentry.'
Sheepskin Parchment Helped Medieval Lawyers Prevent Fraud
'The single sheet he held, and even the words and signatures upon it, were all integral parts of a single giant molecule...'
Space 'Hurricane' Has Been Seen
'... it was the biggest of the four hundred odd storms raging in the Fifty Suns region.'
PR2 Fencing Robot Perfect For Kwisatz Haderach-in-training
'Now, we'll work on your timing. Let me see you catch that thing sinister.'
Sole Morphing Astronaut Boots - A New Pair Of Moon Boots?
'It’s an ideal device for kangarooing along in lunar gravity.'
Mice Gestate In Mechanical Womb
'... in the Decanting Room, the newly-unbottled babes uttered their first yell of horror and amazement.'
3rd Century BC Gold Bee Is Just The Start
Bees knees, I order you to freeze!
More SF in the News Stories
More Beyond Technovelgy science news stories