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Self-Cleaning Glass

michael posted about 12 years ago | from the sale-on-windex-purely-coincidental dept.

News 267

Chris writes "Consumers across Europe can now purchase self-cleaning glass that promises to keep windows free from dirt. The key to Activ glass is an ultra-thin coating only 40nm thick applied to the glass surface during the manufacturing process. The coating, which is based on titanium dioxide, works by combining the two beneficial effects. First, the ultraviolet wavelengths in sunlight react with a photocatalyst to break down organic debris on the glass. The second feature is that the coating is hydrophilic, meaning that when rain hits the glass, it doesn't form droplets. Rain water flows down the glass in a sheet and washes the dirt away."

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267 comments

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Does this mean... (0, Troll)

Phosphor3k (542747) | about 12 years ago | (#4288130)

The glass could kill, or at least damage me, if I hold on to it for too long?

Re:Does this mean... (3, Informative)

srmalloy (263556) | about 12 years ago | (#4288164)

The glass could kill, or at least damage me, if I hold on to it for too long?

Unfortunately for us all, if you're holding on to the glass, you're blocking the sunlight necessary for the reaction to work -- and while it may work well for the typical dust and grime particle, I'm sure you'll admit that you're _considerably_ thicker than a layer of dust.

Re:Does this mean... (0, Troll)

Phosphor3k (542747) | about 12 years ago | (#4288337)

In case you forgot, glass is clear. Light travels through it.
I'm not an idiot. The reaction time of the chemical process would be way to slow to kill me. Ass.

You're the dumbass (0)

Anonymous Coward | about 12 years ago | (#4288441)

UV light wouldn't travel through the glass, it has to come from the same side the dirt is on.

FINALLY (0, Offtopic)

Mr Guy (547690) | about 12 years ago | (#4288131)

Finally, corporations are responding to users. Rally around the cry, "I DON'T DO WINDOWS!"

fp (-1, Offtopic)

perly-king-69 (580000) | about 12 years ago | (#4288135)

get in there!

Self-Cleaning Dishes (4, Funny)

DrLudicrous (607375) | about 12 years ago | (#4288138)

When are they going to make my plates and cups self-cleaning too?

Re:Self-Cleaning Dishes (3, Funny)

Wolfier (94144) | about 12 years ago | (#4288323)

You forgot the PANTS man, PANTS!!!

Re:Self-Cleaning Dishes (5, Funny)

gowen (141411) | about 12 years ago | (#4288456)

Glass pants? I can clearly see your nuts...

Re:Self-Cleaning Dishes (1)

frunch (513023) | about 12 years ago | (#4288510)

that was a laugh and a half.

Mod parent up! +5 witty

Re:Self-Cleaning Dishes (2, Funny)

burbledrone (605693) | about 12 years ago | (#4288339)

When are they going to make my plates and cups self-cleaning too?

Oh dear, another Slashdotter with no girlfriend :->

Thats handy (4, Funny)

gowen (141411) | about 12 years ago | (#4288140)

... but last night I swear they were serving my beer in a self-emptying glass, and that was much less convenient. This morning, my hangover suggests that I may have been helping out.

So they have invented (1)

Diclophis (203740) | about 12 years ago | (#4288142)

Perma-Rain-X ? and what is to keep a bird or your pet animal from scratching this coating from the glass

Re:So they have invented (0)

Anonymous Coward | about 12 years ago | (#4288261)

I'd suggest a shotgun.

Re:So they have invented (1)

kuiken (115647) | about 12 years ago | (#4288265)

Dunno what kinde pets you have where you live, buti would be verry afraid if they can scratch Ti :)

Re:So they have invented (0)

Anonymous Coward | about 12 years ago | (#4288497)

From the intro: ...meaning that when rain hits the glass, it doesn't form droplets. Rain water flows down the glass in a sheet and washes the dirt away

Rain-X does the reverse. It forms big droplets that roll down the window more easily. This product claims to make the water flow in a sheet.

Now... (2, Funny)

s.a.m (92412) | about 12 years ago | (#4288143)

If they would only do something for the *inside* that way I don't have to clean those as well!

Re:Now... (1)

NotZed (19455) | about 12 years ago | (#4288457)

Maybe they could make self-raining skies too, for the drier parts of the world, so the windows dont get too dusty.

howdy (-1, Offtopic)

Anonymous Coward | about 12 years ago | (#4288145)

hello

I need that... (1, Funny)

rimmon (608966) | about 12 years ago | (#4288148)

whenever I clean my windows, my utility bill is lowered by two thirds since I can switch of all these lights during daytime :-)...
darn that street and all that dust :-)

Keeps Windows(tm) clean? (0, Troll)

Jasa (125516) | about 12 years ago | (#4288153)

But it still doesn't make it free from Bugs!

LOL!!!!! (0)

gazbo (517111) | about 12 years ago | (#4288280)

ASL?

_

_

_

Important Stuff:

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Read other people's messages before posting your own to avoid simply duplicating what has already been said.
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Re:Keeps Windows(tm) clean? (0)

Anonymous Coward | about 12 years ago | (#4288293)

HAHAHAHAHAHA!!!!!1!!!!LOLOLOL!ROTFLMAO!!!
THAT is stinking hilarious!
you used MICROSOFT windows instead of the GLASS ones!!! man! the only way that could have been more witty and original is if you has actually used the word microsoft, but instead of an S in the name, you use a $!! HAHAHAHAHAHAHAHA!

Perfect! (0)

plarsen (579155) | about 12 years ago | (#4288156)

Another one to my list of "must have"s when I move away from my parents!

If only (0)

Anonymous Coward | about 12 years ago | (#4288163)

if only toilet bowls were made out of the same material.

i work at a fortune 50 company, and i'm amazed at the amount of 'highly skilled' tech workers who can't take a shit without leaving crap on the side of the bowl.

Yawn. (-1, Troll)

Anonymous Coward | about 12 years ago | (#4288165)

As featured in New Scientist at least six months ago.

Slashdot, first with the news, as always.

Re:Yawn. (0)

Skal Tura (595728) | about 12 years ago | (#4288211)

i remember hearing about that thing about 6months ago... Perhaps then they made first ones now they can mass produce it... dunno..

What's the news? (1)

jared9900 (231352) | about 12 years ago | (#4288167)

This glass was announced at least a year ago. I'll try to find the source, I'll post it if I run across it.

Re:What's the news? (1)

Deag (250823) | about 12 years ago | (#4288232)

It's at least a year, there used to be ads about it here (Ireland) on tv... can't remember how long ago exactly.

Re:What's the news? (1)

theBunkinator (204351) | about 12 years ago | (#4288308)

Saw this demo'ed at this year's builder's show in Atlanta (?) via a program on HGTV [hgtv.com] .

Re:What's the news? (1)

dave_f1m (602921) | about 12 years ago | (#4288328)

Did you read the article? "...having cracked the mystery last year, the company initially launched the product in Ireland, Austria and the US. Today, the bandwagon has rolled into the UK en-route across Europe."
So, the news if for People in the UK, Italy, etc.
Seems simple enough to understand.

- dave f.

new definition (1, Funny)

rppp01 (236599) | about 12 years ago | (#4288170)

that promises to keep windows free from dirt.



You call it dirt, I call it bugs. Whatever. If they can do that, then I might just have to reinstall when the next version comes out!

At first glance... (1)

tomzyk (158497) | about 12 years ago | (#4288172)

...I thought that said "SELF-CLEANING CLASS", as if you Slashdot editors were trying to inform us that we (generally) don't have very good hygene and we may even need to go to school to learn to bathe properly.

I want this (0)

Anonymous Coward | about 12 years ago | (#4288173)

Can I get a sheet of this material for my car?

And not just for the windows, cover the whole car! Never wash it again!

Sure! Call me lazy! I am!

nerft poft (-1, Offtopic)

Anonymous Coward | about 12 years ago | (#4288175)

i nid it mynelf

Enough! (-1, Troll)

Anonymous Coward | about 12 years ago | (#4288179)

Jeez! I'm already sick of the stupid obligatory windows jokes!!!! :-P

Look out Turtle Wax! (2, Interesting)

BadElf (448282) | about 12 years ago | (#4288180)

If this stuff works like they say, it would be a great finish coat for cars. Instead of b*tching about it raining right after you give your ride a bath, the rain would *be* the bath! And with much of the country under drought conditions, think of all the water that could be conserved by eliminating the need to wash cars.

HydroPHOBIC methinks. (0, Informative)

Stavr0 (35032) | about 12 years ago | (#4288181)

The second feature is that the coating is hydrophilic, meaning that when rain hits the glass, it doesn't form droplets.

That would be a hydrophobic coating. Hydrophilic attracts moisture.

Re:HydroPHOBIC methinks. (1)

GigsVT (208848) | about 12 years ago | (#4288206)

That's the point it seems. This is the opposite of that stuff you put on your car's windshield to make the rain bead up.

Re:HydroPHOBIC methinks. (0)

Anonymous Coward | about 12 years ago | (#4288228)

No it IS hydrophilic, hydrophobic would make it bead up -- mod down parent!!

Nope, hydrophilic it is (5, Informative)

David Ziegler (5030) | about 12 years ago | (#4288237)

No, I'm pretty sure that it is hydrophilic. Hydrophobic means it repels water, which would cause the water to form droplets, in order to reduce the surface area. Since it's hydrophilic, the water is attracted to the coating, which makes the water sheet.

Re:HydroPHOBIC methinks. (0)

Anonymous Coward | about 12 years ago | (#4288243)

Nope, philic it is. It's the 'hydrophobic' properties of normal glass that cause droplets to form.

Hydrophobia (2)

bytesmythe (58644) | about 12 years ago | (#4288248)

I think a hydrophobic coating would make the water bead up.

Read this [princeton.edu] for more details

Re:HydroPHOBIC methinks. (5, Informative)

zeus_tfc (222250) | about 12 years ago | (#4288264)

That would be a hydrophobic coating. Hydrophilic attracts moisture.

You're on the right track, but reaching the wrong conclusion. A hydrophobic material would cause water to bead up on the surface, as the adhesiveness of the material would be much less than the cohesiveness of the water. This is a hydrophilic material, at least in a sense, because the water adheres to the surface so well that it counters the cohesiveness of the water. I say in a sense, because I think a hydrophilic material usually absorbs water.

Of course, I could be totally off.

Re:HydroPHOBIC methinks. (1)

InadequateCamel (515839) | about 12 years ago | (#4288347)

Hydrophillic materials do not necesarily absorb water, they just interact with it. In fact, you could trap water (and thus to the casual observer absorb it) by using hydrophobic materials. But everything else is very well stated! (much better than I ever could)

Re:HydroPHOBIC methinks. (1)

simong_oz (321118) | about 12 years ago | (#4288384)

That would be a hydrophobic coating. Hydrophilic attracts moisture.

the second part is mostly correct, but the secret of this coating according to the article is indeed that it is hydrophilic.

Purely speculating here, but ...

What I find quite interesting is that a hydrophilic coating will actually attract water molecules to the surface, presumably adsorbed onto the surface by van der waals or hydrogen bonding most likely. Effectively, the adsorbed layer of water molecules would act a bit like a boundary lubricant lubricant, making it difficult for any dirt to stick to the window in the first place and therefore much more vulnerable to removal by rainfall ... ?

But why the need for a titanium nitride coating???

Re:HydroPHOBIC methinks. (1)

simong_oz (321118) | about 12 years ago | (#4288395)

But why the need for a titanium nitride coating???

bah ... that should have said titanium dioxide

Re:HydroPHOBIC methinks. (1)

burbledrone (605693) | about 12 years ago | (#4288523)

Ignore the slashdot writeup. (I didn't really need to say that, did I :-> ) The titanium dioxide coating is the photocatalyst. When UV falls upon it, it produces photoelectrons which transfer to any organic gunk on the surface, oxidising it.

Classic /. post (1)

chegosaurus (98703) | about 12 years ago | (#4288399)

Technically completely wrong and modded up as "informative".

HydroPHOBIC Windows? (1)

SkankhodBeeblebrox (581971) | about 12 years ago | (#4288507)

No guys... you have it all wrong... HydroPHOBIC would be when windows are scared of water, right???

I love this. (1)

siphoncolder (533004) | about 12 years ago | (#4288183)

In my own car, I've tried to take steps towards keeping the glass clean, from cleaning the interior with water-woolite to prevent chemicals in the PVC from rising and sticking to the glass, to waxing the windows on the outside so that rain just streaks away from your field of view in the rain (you should try it - you hardly need to turn on the windshield wipers in lighter rains).

Problem is, all that work turns into upkeep, since it's far from permanent. Also, you still end up with spotting and streaking on the windshield from the wax being moved by the wipers.

This sorta thing could cut down on my maintenance costs, so that's a good thing - now if they could put it on the paint, i'd mess myself.

I want that for my windshield (0)

Anonymous Coward | about 12 years ago | (#4288188)

Imagine, all that roadkill cleaning automagically off...mmm.

self cleaning...Solar cells! (4, Interesting)

charlie763 (529636) | about 12 years ago | (#4288197)

Sounds like this would be good for Mars rovers and the like. One of the problems that we have with rovers is that the glass on the photo cells get dirty and degrades the power output of the cells. I know that it doesnt rain on Mars, but this glass and some wind might prevent the degredation from reaching beyond some critical value.

Re:self cleaning...Solar cells! (1)

Winterblink (575267) | about 12 years ago | (#4288213)

That's an excellent idea, but wouldn't the effectiveness of the self-cleaning material be lower given the fact that FAR less sunlight hits the ground of mars than here?

Re:self cleaning...Solar cells! (5, Interesting)

Ford Fulkerson (223443) | about 12 years ago | (#4288266)

Yeah, if the mars rover would be covered with organic debris. I think that would be bigger news than self cleaning glass though.

Re:self cleaning...Solar cells! (0)

sirius_bbr (562544) | about 12 years ago | (#4288277)

From the article:
First, the ultraviolet wavelengths in sunlight react with a photocatalyst to break down organic debris on the glass

I don't think the dirt that get's on the solar panels on mars is organic...

Re:self cleaning...Solar cells! (0)

Anonymous Coward | about 12 years ago | (#4288373)

Except the glass depends on periodic rains to rinse the dust/degraded bugs off. No rain on Mars, and solar cells (being horizontal) would have little flow anyway. Not to mention few bugs.

Re:self cleaning...Solar cells! (5, Interesting)

Dr. Spork (142693) | about 12 years ago | (#4288503)

Actually, this makes more sense for solar cells here on earth. People think that power generation with solar cells is free after you set them up, because they have no moving parts, etc. Actually though, it turns out that the most important reason why solar power is expensive in the long run is because somebody needs to periodically clean the damn solar cells. You might not think this is a big deal but when you consider the surface area of solar cells you would need to generate enough electricity to power a city, it really does become daunting.

With this coating, maybe we could just plug 'em in and leave 'em alone. Well, that would be awesome--though I still think it wouldn't solve all the problems, and that the best way to go solar is to build collectors in space.

Usefull for making Monitor screens out off... (1, Redundant)

tonywestonuk (261622) | about 12 years ago | (#4288203)

Esp after a few hours browsing for PORN!!

(score -1 Redundant!)

Re:Usefull for making Monitor screens out off... (0)

Anonymous Coward | about 12 years ago | (#4288242)

We definitely need an "TMI" moderation...

ahem! (0)

Anonymous Coward | about 12 years ago | (#4288204)

what about something every geek could use? a self cleaning toilet.

Re:ahem! (1)

burbledrone (605693) | about 12 years ago | (#4288454)

what about something every geek could use? a self cleaning toilet.

Can't you get a gimp like any normal person ?

Wow! The ultimate pr0n filter? (1)

Tune (17738) | about 12 years ago | (#4288210)

> Consumers across Europe can now purchase self-cleaning glass that promises to keep windows free from dirt.

Sorry, could not resist.

somewhere out there... (2, Funny)

silverhalide (584408) | about 12 years ago | (#4288216)

And somewhere out there, there's a Case Modder who just wet his pants.

The window cleaner's union (3, Funny)

fruey (563914) | about 12 years ago | (#4288220)

In a statement today the Window Cleaner's Union said that this announcement is the beginning of the end.

One cleaner was quoted as saying "as soon as everyone installs these Windows, the traditional squeegee and soap solutions which anyone can use will become extinct. These Windows will dominate the market, leaving only the poor and art-glass people to come up with truly community spirit based solutions with work for great glass cleaning engineers"

Then the skyscraper windowcleaner lift corporation also came in on the act "we can't fit these 'scrapers with our traditional pulley systems any more... sales are plummeting"

Cowboy Neal still manages to stain his new glass though.

Re:The window cleaner's union (4, Funny)

Quixote (154172) | about 12 years ago | (#4288301)

The Window Cleaners Union should take a leaf out of RIAA's book and (a) ask Congress to pass the DWCA (Dirt Window Cleaners Act), and (b) sue Pilkington. After all, this new-fangled glass will put them out of business!

Glasses (1)

fizz-beyond (130257) | about 12 years ago | (#4288229)

Now if I could get that in my classes I'd be set, you have no idea how much stuff collects on them just from daily use (unless you wear glasses then you probably know how much stuff collects on them).

If it requires sunlight.... (1)

MrSkunk (544767) | about 12 years ago | (#4288235)

...to get the dirt of the window, then these will be pretty much useless in places like London and Amsterdam where the sun shines about three days a year.

Re:If it requires sunlight.... (2)

Ratface (21117) | about 12 years ago | (#4288256)

Ah, but on the upside, there's more than enough rain, so the dirst will be washed right off anyway thanks for the hydrophilic coating ;-)

Windex still needed (0)

Anonymous Coward | about 12 years ago | (#4288238)

What about the inside of the glass?

Re:Windex still needed (1)

kieran (20691) | about 12 years ago | (#4288309)

Same coating, same sunlight, wet cloth?

Even if not, it's the outside that is the priority - you don't normally need a ladder to clean the insides.

Eye glasses, camera optics and consumer goods (2)

hrieke (126185) | about 12 years ago | (#4288246)

Are the first two things I want to see this used on.
Then I can see this used on car windows, computer monitors, and other glass surfaces.

Re:Eye glasses, camera optics and consumer goods (1)

vidnet (580068) | about 12 years ago | (#4288284)

Not computer monitors maybe. The whole self cleansing part was brought on by UV light and rain.

If you decide to open a few curtains and use the hose option, I think dirt on your monitor is the least of your worries.

Its probably doomed. (1)

DigitalSorceress (156609) | about 12 years ago | (#4288253)

I wonder if in this day and age, the Windex people will just sue them into oblivion or even better, buy it all up and never actually sell any.

Of course if it does become available, I wonder if I can get my house made out of this stuff - I'd never have to clean again. Though I suppose I would still not be able to throw rocks. *grin*

Re:Its probably doomed. (0)

gazbo (517111) | about 12 years ago | (#4288310)

And what exactly would they be sued for, Albert?

When someone releases a new car, other manufacturers don't sue them because it's better. I would give more analogies, but why bother? It's clear to anyone who'll actually think about it rather than just seeing the word 'sue' in the contect of 'this day and age' whilst nodding sagely.

Very cool! (1)

Bartmoss (16109) | about 12 years ago | (#4288288)

or two months now I have pondered to clean my windows. Triumph, I say! I was right not to do it! I will just get this stuff instead! Being lazy has finally paid off!

Skyscrapers (1)

z_gringo (452163) | about 12 years ago | (#4288298)

It seems the real market for this will be in Tall Buildings, although the article didn't seem to mention that.

I wonder what all those skyscrape window cleaners will do for work? I never understood how someone could just throw a rope over the edge of a building, and go down swinging back and forth cleaning the windows. Those moving platforms they have now at least look more stable, but with these new windows, those too might become obsolete.

The problem seems to be that it would only "clean" the windows when it rains. What about windows that are posistioned where the rain won't ever hit them? I guess you could just hose them off...

Re:Skyscrapers (0)

Anonymous Coward | about 12 years ago | (#4288515)

Huh huh... he said "hose"

Coat my entire car? (0)

Anonymous Coward | about 12 years ago | (#4288316)

Could this substance be used to coat all of the glass and paint on my car so that I don't have to wash it as often?

Or at least so that it isn't as dirty as it is for as long as I tend to let it stay dirty?

Neat... next? (2)

jhines0042 (184217) | about 12 years ago | (#4288324)

Ok, cool, self cleaning windows.

Best application for these will probably be cars.

Question though, what happens if you get something non-organic on it... like spraypaint?

Worst application for this... (3, Insightful)

thaigan (197773) | about 12 years ago | (#4288394)

You wouldn't want this on your car windows. It would have the opposite effect that RainX produces. Visibility during rain would be very bad.

Rain inside? (1)

SecretAsianMan (45389) | about 12 years ago | (#4288333)

What are they going to do when it never rains inside the building? "Oops" goes the marketing department.

Doesn't work as advertised (4, Funny)

HiQ (159108) | about 12 years ago | (#4288341)

A few weeks ago I found out that there was a dead bird in my chimney (sp?). I only found out when there where hundreds of flies in my house, all covering the windows. All the shops were closed, so I couldn't buy a spraycan with which to kill all the flies. Openening the windows didn't do the trick so the only viable option left was to swat them. You should have seenm those windows after I was finished. Lots of organic debris on the glass, but there isn't a self-cleaning window in the world that could keep itself clean with a carnage like this.

Maybe they need self-cleaning paint (1)

qurob (543434) | about 12 years ago | (#4288343)


I could use it on my car

This has been available in the US for years... (5, Informative)

bad-badtz-maru (119524) | about 12 years ago | (#4288348)


PPG is one of the largest manufacturers of residential windows and they have produced windows using the self-cleaning coating for several years now.

http://www.ppg.com/gls_sunclean/

maru

Re:This has been available in the US for years... (0)

TJPile (220972) | about 12 years ago | (#4288392)

He's right. Us Pittsburghers have known about these windows for almost a year. Maybe longer. We know our glass and steel ;).

Reversible Windows (1)

arestivo (459117) | about 12 years ago | (#4288370)

Now we just need some automatically reversible windows so we never have to wash them again.

Don't throw away your Windex yet! (1)

mustangdavis (583344) | about 12 years ago | (#4288385)

Does this mean that I don't have to clean the ass print on my car windows after I moon someone during winter?

Gimme a break people! You can't throw away your Windex yet!

hmm (0)

Anonymous Coward | about 12 years ago | (#4288393)

Well if it breaks down organics what does it break them down to? What will it smell like?

nudie booths (0)

Anonymous Coward | about 12 years ago | (#4288415)

Randal: Do you have any idea how much the average jizzmopper makes?

Dante: whats a jizzmopper?

Randel: the guy that cleans the windows in the nudie booths I dont know if you realize it but cum leaves streaks if you dont wipe it off

with apologies to Kevin Smith

Its quite widespread already (5, Informative)

sh0rtie (455432) | about 12 years ago | (#4288425)


According to Google [google.com] there are over 1500 references to self cleaning glass, quite a few manufacters are already selling it, Pilkinton (uk glass company) and Sunclean seem to be the market leaders though Pilkington seem to claim "the worlds first". The BBC reported this [bbc.co.uk] technology in 2001, in 2002 Saint-Gobain Glass won a Siemens Award for innovation for their version

http://www.ppgsunclean.com/ [ppgsunclean.com]
http://www.activglass.com/ [activglass.com]
http://www.afgglass.com [afgglass.com]
http://www.saint-gobain-glass.com [saint-gobain-glass.com]

Self-cleaning crack pipes? (1)

Marijuana al-Shehi (609113) | about 12 years ago | (#4288429)

The article didn't say anything about self-cleaning crack pipes. Noelle Bush might be interested in one.

Pilkington have been selling them for a while... (1)

valen (2689) | about 12 years ago | (#4288431)

And though it's a great idea, it only really works in cities, and doesn't clean *everything*, just oil-based stuff from traffic (and then the dust that sticks to those oils).

It creates a small amount of nitrous acid from rain - it seems someone likes acid rain...but only if it does work for us!

While it'll get rid of marks from kids blowing raspberries on the window, it won't clear up the mud from their fingers.

Titanium is cancerogenous! (0)

Anonymous Coward | about 12 years ago | (#4288432)

Titanium is a very poisonous metal. Is it really a good idea to cover all our windows with it?

It also creates strong oxidants which themselves are cancerogenous...

The Doom is Near

Alternatively (2, Insightful)

Ed Avis (5917) | about 12 years ago | (#4288442)

If glass or transparent plastic were a bit cheaper, you could just replace the windows and not need to clean them.

How about a thin plastic film which you spray onto the glass and just peel off when it gets dirty?

One step closer... (4, Funny)

msheppard (150231) | about 12 years ago | (#4288467)

One step closer to transparent aluminum.

(Hello... Computer?)
M@

Who needs blacktop when we have grass? (1)

palmech13 (59124) | about 12 years ago | (#4288472)

Excellent! Now we can plant grass without those pesky side effects like helping prevent flash-flooding of urban areas. No longer do we have to cover the earth with concrete, now plants can have equally harmful properties.

Labor (1)

_Spirit (23983) | about 12 years ago | (#4288481)

I wonder if this was developed because of labor laws. Europe and my home country Holland have been tightening rules on what labor is safe to do for ppl, and what kind of measures should be taken to insure safety in the workplace.

Because of this ladders aren't allowed anymore for windowwashers going up more than one or two floors. These tightened rules have made it either impossible or ridiculously expensive to clean windows in some hard to reach.

These windows might solve this :-) Of course the developers might just be lazy bums like me, who hate to clean windows ;-)

Don't get your fingerprints on the glass! (0)

Anonymous Coward | about 12 years ago | (#4288522)

the ultraviolet wavelengths in sunlight react with a photocatalyst to break down organic debris

Johnny didn't I tell you not to get your sticky fingerprints all over the glass?

Ah.. it hurts mommy.. my fingers hurt

Ok, that wasn't as funny as I thought, plus someone already probably did something better anyhow. Damn you people and your reading abilities.
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