Science Fiction Dictionary
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

 

Fog Harvesting For Fresh Water

Fog harvesting devices that gather air-borne water droplets and then concentrate them for use by humans. About nine hundred million people around the world do not have access to a source of clean drinking water.

A fog-harvesting device consists of a fence-like mesh panel, which attracts droplets, connected to receptacles into which water drips. Chhatre has co-authored published papers on the materials used in these devices, and believes he has improved their efficacy. "The technical component of my research is done," Shreerang Chhatre of MIT says. He is pursuing his work at MIT Sloan and the Legatum Center in order to develop a workable business plan for implementing fog-harvesting devices.


(Fog-harvesting mesh)

Chhatre's training as a chemical engineer has focused on the wettability of materials, their tendency to either absorb or repel liquids (think of a duck's feathers, which repel water). A number of MIT faculty have made advances in this area, including Robert Cohen of the Department of Chemical Engineering; Gareth McKinley of the Department of Mechanical Engineering; and Michael Rubner of the Department of Materials Science and Engineering. Chhatre, who also received his master's degree in chemical engineering from MIT in 2009, is co-author, with Cohen and McKinley among other researchers, of three published papers on the kinds of fabrics and coatings that affect wettability.

One basic principle of a good fog-harvesting device is that it must have a combination of surfaces that attract and repel water. For instance, the shell of Stenocara gracilipes [the Namib beetle] has bumps that attract water and troughs that repel it; this way, drops collects on the bumps, then run off through the troughs without being absorbed, so that the water reaches the beetle's mouth.


(The Namib Desert beetle - photo by Andrew Parker)

SF fans are long familiar with this kind of technology. In his epochal 1965 book Dune, Frank Herbert wrote about the technology used to help human beings survive on a desert planet, one with no surface water.

Learn more about Dune technology like dew collectors. water-repellent surfaces, windtraps and dew gatherers.

Via MIT News.

Scroll down for more stories in the same category. (Story submitted 4/20/2011)

Follow this kind of news @Technovelgy.

| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |

Would you like to contribute a story tip? It's easy:
Get the URL of the story, and the related sf author, and add it here.

Comment/Join discussion ( 0 )

Related News Stories - (" Engineering ")

Wearable Biomedical Sensors Printed Directly On Your Skin
'The dragon is a skin computer... People put it on their arms and exchange personal data.' Greg Bear, 2009.

The First Multi-User Hologram Table?
Let the Wookiee win. - George Lucas, 1976.

The Details Of Tesla’s FSD Full Self-Driving
'As the beautiful old car cruised in almost perfect silence under the guidance of it's automatic controls...' - Arthur C. Clarke, 1976.

Augmented Reality Palm Keyboard
'Three rows of four colored dots appeared on the heel of my left hand.'- John Varley, 1992.

 

Google
  Web TechNovelgy.com   

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.

 

 

 

 

Science Fiction Timeline
1600-1899
1900-1939
1940's   1950's
1960's   1970's
1980's   1990's
2000's   2010's

Current News

Star Trek Voyager Replica Tricorder And Galaxy Quest
'They designed those controls after watching you...take her out!'

Rolls Royce Electric Airplane Breaks Records
'A white electric plane approached at great speed...'

Chang'e-5 Lunar Lander Seeks Water
'... get out the solar power apparatus and send it down to us from the air-lock by the crane.'

I Really Want A Folding Computer
'...A paper thin polycarbon screen unfurled.'

A Kill Switch For Your Car?
'The car faltered as the external command came to brake...'

Scientifiction, Searchlight of Science
'And science goes on, with scientifiction as its searchlight.'

Wearable Biomedical Sensors Printed Directly On Your Skin
'The dragon is a skin computer... People put it on their arms and exchange personal data.'

Artificial, Implantable Kidney Prototype
'George Walt's corporate existence proved the workability of wholly mechanical organs...'

Ultra-short Pulse Laser Kills Bacteria In Vivo
'...coherent beams at precise wave-lengths passing through her flesh to zap foreign molecules within her body.'

Bioprint Prototype Handheld Bioprinter
'He turned the little art-derm nozzle...'

Betty Crocker, The First Company Avatar
'After six months of surgery and psycho-conditioning, he was identical with the other 496 Mr. Prestos...'

Augmented Reality Book Covers Reveal The Inner Book
'The E-paper holograms leaped from lurid covers...'

The First Multi-User Hologram Table?
Let the Wookiee win.

Apollo 8 Astronauts Pass The Equigravisphere
'... divers other objects, firearms and bottles, abandoned to themselves, held themselves up as by enchantment.'

Stellar Pizza Is A Pizza Robot That Comes To You
'No hand touched the food...'

Yamaha MOTOROiD Living Motorcycle Experiment
'He had never ridden any motorized device that lacked onboard steering and balance systems.'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.