Pilkington Activ Glass - The Invisible Squeegee Of Window-Willie

Pilkington Activ glass has a coating of microcrystalline titanium oxide that acts as an "invisible squeegee" to allow the surface to clean itself.

The nano-scale (15 nanometers) coating has two remarkable properties that create the effect:

  • It absorbs sunlight (ultraviolet radiation) - creating a photocatalytic effect on dirt accumulated on the window, breaking it down.
  • It makes the surface of the glass hydrophyllic - rather than beading up (and drying in blotches), water forms a sheet that allows organic dirt particles to flow off and then dries much more cleanly.


(From BBC article)

Pilkington Activ glass reduces the amount of sunlight passing through by only about 5%; the coating is very tough and would require real abrasion like a determined scrubbing with steel wool to take it off. It can greatly reduce the cost of cleaning large commercial buildings (or the windows in your house!). It also eliminates harsh cleaner residue from the environment.

SF fans may recall Window Willie, the window-washing invention from Robert Heinleins 1956 novel The Door Into Summer; the novel describes it as an "electrostatic device" that makes dirt disappear from any polished silica surface. I wonder if the coating would work on other kinds of surfaces?

Read the story at Eco glass cleans itself with Sun. Visit the Pilkington Activ glass website for more information. Thanks to an alert anonymous reader for this story!

Scroll down for more stories in the same category. (Story submitted 6/9/2004)

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 - (" Material ")

New Material Absorbs and Stores Solar Energy
'The light that is thus trapped can be released by making a small spark near the glass.' - L. Sprague de Camp, 1940.

3D Printed Damascus Steel Now Possible
'... lined with durite, that strange close-packed laboratory product.' - Robert Heinlein, 1939.

3D Printing Of Metallic Glass
Great Scott!

Draw Circuits With Conductive Ink
'It's rewiring things... squeezing silver toothpaste in a ribbon along the printed circuitry.'

 

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.

 

 

 

 

 

Current News

Flatcat Robot Recalls Both Heinlein And Simak
Sorry, you'll need to read the article.

Nuclear Batteries May Pack Inner Punch
'... the most super-valuable substance in the solar system.'

Elon Musk STILL Wants To Make Heinlein's 1940's Speedster
'As she neared the barrier the car surged and lifted...'

Mercury Capsule Ablative Shielding
'...a synthetic which air-friction would erode away.'

Heinlein And Russian Quail In Orbit
'No earth-hatched bird can learn to fly in that fashion...'

Listen Up, Coppertop - Wearable Device Turns You Into A Battery
'It's our way or the highway.'

Solar Powered Robot Cleans Up Solar Panels For Free
'... with large padded feet, who were apparently polishing their way the whole length of Rama's six artificial suns.'

Spot Arm From Boston Dynamics Picks Up Like Heinlein's Hired Girl Robot
'Anything larger than a BB shot it picked up and placed in a tray on its upper surface...'

Electric Vehicle Prices Will Drop To $2,890
'the human seats took up two-thirds of the room in each'

TIGER Ultimate Mobility Vehicle From Hyundai
'He admired the fast-plodding, articulated legs...'

Drones Communicate With Each Other Using Quantum Encryption
'the curious absent look of a robot talking on the TBR circuits...'

Space Construction Tools For Large Structures By OAC
'Mass-produced in the orbiting factories...'

SpinCare Electrospins And Shoots Wound Dressing
'Over her lacerated right shoulder he sprayed art-derm...'

Tesla Model S And X Moves Toward KITT Knight Rider Styling
Now, that was a Pontiac Trans Am with some real style.

Sophia Robots By The Thousands
'There is a built-in microphone that hears everything you say, and an electric brain that selects a suitable answer.'

Scaly-Foot Snail Works With Iron
'Micro-Scale suit tiles fabricated by genetically engineered metal affinity bacteria...'

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.