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 -
Mealworms Food Of The Future
Get your grubs on.
Self-Driving Domino's Pizza Car
Yes, but can it negotiate entry at your Burbclave?
Mmm, Tasty Duck From A Petri Dish
'Laboratories in every city had produced synthetic food and meats, grown in large test tubes...' - David H. Keller, 1933.
Eden-ISS, Greenhouse In Antarctica
'With this kind of light we could get the gardens going again." - Barbara Humbly, 1983.
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.
IBM's Grain Of Sand Computer
'Our ancestors... thought to make the very sand beneath their feet intelligent...'
Liquid Metal Shape-Changing 'Soft Robotics'
'A mimetic poly-alloy... 'What the hell does that mean?''
The Hammock Caravan And Italo Calvino's Octavia
'Now I will tell you how Octavia, the spider-web city, is made.'
Super-Resolution Microscopy Provides '4D' Views
View the magnified interior of living cells.
Have I Seen The Tesla Roadster Story Before?
'Only it wasn't a vessel. It was an automobile...'
Watch 'Do You Trust This Computer' For Free Today
Thanks for making this available, Elon.
Self-Driving Car Ticketed
This just missed making my day.
Elon Musk Tweets Versions Of Clarke's Operation Cleanup
'Fortunately, the old orbital forts were superbly equipped for this task.'
Burner Generates Temporary Phone Numbers
'Interesting phone system he's got, by the way...'
Walmart’s Autonomous Robot Bees
Everyone loves bees.
EA Created AI That Taught Itself To Play Battlefield
Harmless fun for computer scientists.
Is Teleportation A Death Sentence?
'A long trail of dead, he thought, left across the stars...'
New Brain Scanner Lets You Move Around
'In Bob Arctor's living room his thousand dollar custom-quality cephscope crafted by Altec...'
Can An Entire Brain Be Simulated In A Computer?
'The miles of relays and photocells had given way to the spongy globe of platinum iridium about the size of the human brain.'
Physicists Try To Turn Light Into Matter
If E=mc squared, then... m=E/c squared!
Save Your Brain's Connectome, Upload Yourself Elsewhere
'You've got remote storage. How regular is the update?'
More SF in the News Stories
More Beyond Technovelgy science news stories