Slashdot Mirror
Light Emitting Pictures On Standard Inkjet Printer
CrashRide writes: "This story on FOX states that UofA scientists have discovered a way to print light-emitting pictures on thin sheets of plastic using a standard inkjet printer. Fold up pocket monitors?" The article says that these scientists have produced "OLEDs of simple bands of light, a scorpion, the University of Arizona logo and even photographs of themselves."
reading comic books under the sheets at night a lot easier :)
How Jaded Are You?
Lite Brite?
Now if we could just get that kind of dazzling brilliance and the happy children singing songs to our spreadsheets
Old age and treachery almost always overcome youth and skill.
This is the Gilette model: "Give 'em razors, charge for blades!"
"Flyin' in just a sweet place,
Never been known to fail..."
that pr0n can't benefit from?
The solution is 1,000 times thinner than a human hair and requires 20 times less electricity than a fluorescent light does, Jabbour said.
Really? Can I light my room with it? If not, what is the significance of this statement?
Takahashi Rumiko made beats! DON, taku, DON, taku. . .
I wonder who owns the patent on overhead projectors...
Don't mod this down because you're stupid and don't know what I'm talking about!
It says "cheap".
Could industries like bookmakers or publishers use this sort of thing? I'm rather fond of the glowing text on the black background, if you ask me, and it would provide a great alternative to something like a reading light. of course, it'll probably jack the cost of books up. Even though they do claim it'll be "inexpensive".
However, I do think their assumption about 'computer monitors' is silly - right now, they're printing flat pictures, not moving, highly detailed ones.
...GLOW IN THE DARK PORN!!!
But seriously, what are some real world applications for things like this? I haven't seen one in real life, so I don't know how bright they are, but I don't think we're at pocket monitor level yet.
"The dog ate my homework."
"Why didn't you print out another copy?"
"It ate my monitor too..."
I'm a bloodsucking fiend! Look at my outfit!
This is just a poster that glows -- it's a static picture that glows using a low amount of electricity. Unless you're running Windows, and all you need to display is the same bsod, you'll need a more "dynamic" display :).
Never underestimate the bandwidth of a 747 filled with CD-ROMs.
You know what editor means? Someone who edits. For example, an editor might cut out stupid comments from a post, such as "Fold up pocket monitors?".
Tomorrow's submission: "HP has developped a new ink that lasts longer. Fold up interactive e-books?"
They that quote Benjamin Franklin on liberty and safety deserve neither.
...and requires 20 times less electricity than a fluorescent light does, Jabbour said.
So to read your newspaper I need a battery.
BFD.
This is what was done with a multimillion dollar grant from the US Dept. of Defense. I think it's pretty cool, even though the technology itself is pretty old (the article mentioned it was 14 *years* old).
Basically all they do is put a solution onto plastic sheets that turns electrical energy into light. This is cool because in a few years we might see these special inkjet cartdiges appear on the consumer market. They would probably be in a kit including the cartridges with the special solution in them, and plastic paper to print on, some coating for the "paper", and a power supply to rig the whole thing up. You could make some pretty cool signs with this, yes indeed.
I think it would be cool to make halloween signs, amateur beer signs for your bachelor pad, or coat your car's inside roof with them, and instead of having a dome-light, the whole inside roof of your car lights up!
Cool stuff.
Moon Macrosystems. Sun's biggest competitor.
This sounds all well and good, but what I don't understand is how they address the individual pixels. If I read this correctly, they are spraying the light emitting pixels onto the sheet. But how are they getting the power to each pixel? Are they spraying wires on as well?
Sometimes it's best to just let stupid people be stupid.
The same people who claimed in 2001 that the lunar landings were faked...
I did not eat much yesterday, so today's turd was a real shocker. It did not feel like there was much coming out while I was taking a dump. But there was a massive amout of shit there. It was not one big turd, but it was just a huge pile. It looked like the classic pile of shit. It was a generic brown in color. It came out just as easy as can be. The smell was minimal. The real plus was, it even clogged the turbo-flusher at work. I all but fell over in amazement. I will rate this 'turd' a 7.
I would like to comment on poor bathroom design. Here at work there are only 2 stalls (and 2 urinals, one of them is a kiddie urinal, that is a different rant). This is a horrible set-up as there is no 'buffer stall' as needed in my bathroom rules. if someone else wants to take a dump, they have to sit next to me. This is not acceptable. There is one guy who insists on talking to me while I am trying to take a dump. I have no way to escape this guy; it is if he waits for me to go into the bathroom and he follows me in.
Michael Loves Me!
Does that mean the Mozilla team doesn't have to fix bug 2586, "Print Preview animates GIFs"? Here's the original bug report:
In Print Preview, animated GIFs are still animated. I would love to say
that it is not a bug, but unless the printing code can then back the
preview up by animating the printed copy, I suggest the Print Preview
should show a static image.
This also applies to applets, Javascript, "hover" and "active" pseudo
classes, and so on.
The shareholder is always right.
I first saw this on a Sunday afternoon techie program, think about text flying around, blinking or being added dynamically via a wireless lan connection to a page and you've got the idea of it's coolness (even though its only monochrome).
The thing I like about eInk the most is that its fairly high-res (well, it looks sharp to me) and that it does not require back-lighting, it reads like paper under natural light.
http://www.eink.com/
crazy dynamite monkey
on oragami.
There is a better story on the UA newspaper. And here is the link to research department. Not much here yet except for an animation.
Never underestimate the bandwidth of a 747 filled with CD-ROMs.
High latency, high bandwidth!
since this is using organic light emitting DIODES, does this mean that they can be wired back to back to create spray on transistors? Ultracheap custom chips... just gotta figure out how to solder onto paper.
This technology could probably replace the backlighting methods used today, but as another poster mentioned, it can only display static images printed on it.
The real breakthrough will be when they can manipulate an image on it, Colour or not.
This is just a poster that glows -- it's a static picture that glows using a low amount of electricity. Unless you're running Windows, and all you need to display is the same bsod, you'll need a more "dynamic" display :).
If you can print conducting traces, you could set up a grid pattern of traces around pixels that would let you selectively activate pixels, much as you do in a passive-matrix LED. At any given time, one horizontal line (say) would be ground, and the rest would be at Vdd. Vertical lines would be driven or not driven depending on whether you want pixels in the active line on or off. If these printed pixels really are OLEDs - diodes - then you won't have to worry about the other horizontal traces shorting across the vertical lines.
I'm sure there are a number of ways of printing conducting traces with ink. Even a high-resistance trace could be electroplated after printing with thicker metal.
The only question is whether a) the type of OLEDs printed with this technology are really diodes, passing current only in one direction, and 2) whether instantaneous current can be high enough to give an acceptable _average_ current (and brightness) per row over the whole scanning cycle. A row turned on one thousandth of the time needs to be a thousand times as bright when it's on.
Other methods of addressing pixels in a display are of course possible. This is just one of the easiest (not necessarily best).
I think Microsoft should include this innovative technology in their Certificates of Authenticity. Five years from now, Billy will claim that Microsoft invented the technology and then they can monopolize and squash the printing industry. This will be very good for the consumer, who will now have less choices and more Microsoft taxes on just about every product on the market, because just about every product involves printed materials. And this will keep the economy strong.
(Yeah, Billy's economy that is.)
Not trusting the headline whores at fox news, I did a little searching on google and found this article published in June of 2000. It has a better review of the actually technology from a pure science point of view, rather than the "marketing press release as if it were a product" garbage that was posted.
"Get them before they get....
Yet another example of technology working for the good of all. /end sarcasm/
I am not a robot. I am a unicorn.
Ultimately, the technology could lead to computer monitors that you fold up and put in your pocket like a handkerchief.
when you accidently blow your nose with it?
Thanks to file sharing, I purchase more CDs
Thanks to the RIAA, I buy them used...
Imagine the screen depth resolution you could have ..
"The solution is 1,000 times thinner than a human hair" Just need to have enough dpi on your printer:)
does this mean that they can be wired back to back to create spray on transistors? Ultracheap custom chips
Spray on transistors are almost there. (The linked article mentions some spray on circuitry but the (fast) transistors are rubber-stamped, they're still working on spraying those). The folks described here are doing spray-on polymer transistors.
Hmm, couple the LEDs, the transistors and some good optical sensors and you can make yourself a cloak of invisibility...
-- Alastair
What if each pixel or colour responded to a unique radio frequency?
Problem would be to calibrate/program the pixels to respond, which could be overcome I'm sure.
Just imagine pinning a giant piece of plastic to your wall and watching Matrix for the 15th time.
Proofread, and still goofed. I need sleep :).
This article says they've created a way to print static glowing pictures to a page. That's a far cry from CRT functionality (i.e. a dynamic display capable of changing states very frequently to produce moving pictures). For all we know they "glow up" and "glow down" times of these OLEDs could be so slow that you couldn't squeeze any useful refresh rates out of them.
- "It's just a matter of opinion!" - PRIMUS
that person beside you on those long flights can read his book without waking you up with those overhead lights... Ahh the powers of technology... light free Harry Potter novels (and pr0n also, hehehe)
--Forest C. Adcock--
Why?
Well, besides the inherent coolness factor, it would make all this talk of "hardware encryption" mildly irrelevant.
Print a page...
Move joystick...
Print a page...
I'm trying to teach myself to set people on fire with my mind... Is it hot in here?
These can be used as monitors much in the same way a cardboard box with a picture of Jay Leno drawn on the side of it can be used as a TV. ie: not at all
sorry to burst anyones happy bubble of mis-information
hey this stuff would be neat to integrate into your clothing, you could have some kind of display on your forearm or the like, combined with flexible solar panels and peizoelectric inserts in your shoes...maybe the makings for a low cost, low power wearable? or maybe for those of you that are down with this kind of shizz, banner advertising across your back and chest? -
- wha-choo talkin' 'bout willis?
Welp thats pretty kewl.... Now if those same teachers only knew how to TEACH what they research, then maybe I wouldn't have left the school.
This was done in June of 2000 by Epson-Sieko (yes the printer people) and CDT, a British company that researches OLEDs and similar crap.
Google brings up some resulst verifiying this but unfortunately the real copies are down - heres what google has cached.
The prototype colour display has been made using CDTâs red, green and blue polymer materials and an industry first ink-jet printing process developed for the project.
Warning: Printing The Sun may cause permanent eye damage.
Rather than illumination, they use electrified pigments or rotaing, embedded spheres to change the color of a sheet of plastic. One difference with the technology at UoA is that charge is only needed to change the image, not maintain it. One of the developers described it as "paper that prints itself," which gives you an idea of what kind of applications it could be used for (e.g. hourly updated price signs=good. Monitor to watch a live video stream=bad).
"Prepare for the worst - hope for the best."
Who moderated this as Interesting? Sheesh, you can feel the sarcasm dripping off this sentence: "I can't wait until they discover lamination"...
Look here.
If you don't want to repeat the past, stop living in it.
Subject says it all.
A few months back - someone, somewhere posted an article related to the work one of the printer manufacturers was doing with LEP (Light emitting polymers?) The result would something rather like a display that could be printed on plain paper. Anyone have that link? I Goggled for like half an hour without finding it (it's been a slow day here.)
This stuff is so much like that mentioned in Stephenson's The Diamond Age - it's remarkable.
In a year - you'll be finding glowing Marlboro adds in a copy of your favorite magazine.
\Drew National Data Director, John Edwards for President
For the real good stuff, you'd need the 3D printer technologies we keep hearing about.... :)
Kodak has been working on OLEDs to replace LCD technology for 20 years. See their progress here: http://www.kodak.com/US/en/corp/display/index.jhtm l
Here's where Fox got the story from, for those that would rather avoid any contact with FOX and go straight to the source.
http://www.azstarnet.com/star/mon/11112tinylights2 ftse2fmst2f.html
Fox is pretty much the sleaze of the earth... kind of like what would become of an AOL/MSNBC/National Enquirer/Hustler mega-merger.
This is the network that runs "NASA never got us on the moon" stories posing as news, just when special interest groups are lobbying Congress to privatize NASA and "open" space to responsible development (not).
Fox is as important to the GOP (Republicans) as "the games" were to the Romans.
For all of you complaining about getting power to the traces ;)
Would it be feasable to use radio-flourescent materials that shine from specific frequencies of light or radio waves for each pixel? Maybe something akin to a quantum dots. Thus, you would print pixels on paper, and it would display a picture based on a multi-spectrum broadcast rather than a raster scan across etched wires?
I had this dream once.. I was looking at a slot-car race set, still in the box. On the box artwork, the cars were moving because it was animated.
I think the 'inspiration' for this dream came from a slot car set I had years ago.. It had glow in the dark artwork.
I guess at some point in our lifetime we'll see this sort of thing. Cheap paper displays connected to CPUs and a tiny battery to replay animations.
It is going to be a weird world..
Is it too much to ask for pictures? really? its hard to get excited about something if i cant see it.
Remember when Chromium was all the rage? I can't wait for some comic to come with a light up cover. Spawn 200, anybody? Maybe it will recreate the boom that we last saw in 1993, and we'll actually get some good titles coming out.
I'm sure this will prove useful for toys and trading cards too. Maybe cards with a docking station that makes them light up so you can see them? I'm sure it can be made into the gimmicky toy that many other good technologies wind up as.(Like 3-D, rotary engines, and Polaroid Cameras)
Often in Error, Never in Doubt.
This is a completely blatant plug, but it is on topic. There is an EL technology that allows for a paper-thin cold light source. The first one we have produced is a "Linux" lamp. I have video of one on our web site http://www.exoticlights.com The lamp not only glows but also is animated. We have a few prototype units for sale.
When I was a graduate student at UCLA in 1998, I heard of Professor their that already patented the process for using ink-jet printing techology for creating Organic LED devices. The original paper is: S.C. Chang, J. Bharathan, and Y. Yang; "Dual-color polymer LEDs processed by hybrid inkjet printing technology", Appl. Phys. Lett., 73, 2561, (1998). If you want to know more about this, visit Dr Yang's website at http://www.seas.ucla.edu/ms/faculty1/yang-yang.htm l.
Heres a link to a neat demo of how OLEDs work.
http://www.optics.arizona.edu/oled/
Im not here now... Im out KILLING pepperoni
http://www.cuttingtheedge.com/qtakes/2001/foldable _lcd/foldable.shtm
Going to the list of articles you can see that this was featured back at the end of July. Sometimes it takes a long time for neat stuff to leak out.
"It is a greater offense to steal men's labor, than their clothes"
if somebody printed out a picture of the goats.cx guy?
Stop this technology before someone tries it and wipes out the planet.
I work in computer sales, so i should know. Cost of most home purchased printers $50-200. Cost of ink(~$40) over 5 years, replacing ink once a year, black + color, 80 * 5 = 400. So you pay like 2x for the ink vs the printer.
LinuxWorx
Spelling errors are intentional as are gramatical error
Here is an intersting page at universaldisplay corp. It includes some neat pictures and some video clips of the thing working. Not quite the same, but its OLED and on a flexible display. Neat.
http://www.universaldisplay.com/foled.php
Im not here now... Im out KILLING pepperoni
"right now, they're printing flat pictures, not moving, highly detailed ones"
hmm you might want to take a closer look at your LCD screen and check for moving parts.
to make things look like they move you just have to print these things at great density and retain the power to turn them on and off at will.
I would say it will certainly be possible to do it with this technology, but by the time it's that developed the established technologies will have moved on a ways and it won't be worth it.
'There is a Light that never goes out.'
Ok guys, not every new invention *must* be plugged into your computer in order to be revolutionary.
This process could obliterate the neon sign industry.
And bring Stephenson's "Loglo" a big step closer to reality as every available surface gets plastered in pulsing lights.
'There is a Light that never goes out.'
BSD is for people who love UNIX. Linux is for those who hate Microsoft.
Windows is for people who hate themselves.
Sure ads a new dimension to powersaving computers when you can turn off all other light sources in the room. :-)
This message has been ROT-13 encrypted twice for higher security.
Fuck the University of Arizona's computer science department right in the ass.
1. Printers aren't new.
2. Light emmiting ink isn't new.
Just pour 2 in a cartridge for 1.
You should only be aware not to make the system to mesy or your printer might start to glow.
Cool things aren't invented anymore, just new uses for cool stuff are found.
They already have printers that do that (well, basically). If I remember correctly, the printer's "ink" is a glue that is passed over a layer of powdered plastic. Layer by layer of powder bonds with the glue to create the 3D object. If you can create it in 3ds max (or whatever your software of choice is) then you can create a real-world model of it. The only limiting factor is the size of the printing bay.
like a knight in shining armor/from a long time ago
Did you not run this story last year some time about the group in cambridge doing just this ?
there's a lot of info missing from the crappy article linked. I myself are working with OLED's and the way these people represent there results is complete BS!!!
All this work has already been done a few years ago, and they dont mention that you still need to have ITO electrodes to keep te thing running/emitting light. And the distance between top/bottom or right to left side is in my idea way too long.
And most importantly, it'll look like those cool futuristic movies from the 1960s!
Care about electronic freedom? Consider donating to the EFF!
Hmmm, damaged by moisture, hmmmm...
How about we print the image on the inside surface
of a vacumm tube? That'll keep it dry, right?
by allowing bullies to not only put "kick me" signs on unfortunate kids' backs, but give them animated tips on form and ideal kick positioning. They could even tie in dynamic content such as a kick counter, and an automated "principal mode" that would change it to match the color of the wearer's shirt when an authority figure happened by.
I can see it now; I'll be sitting by a fire, talking to my grandkids...
"I remember the days when we couldn't change the wallpaper in our house without walking 10 miles to the home improvement store... in the snow... uphill... both ways!"
Want Linux games? HERE.
People may like to look at the website of Cambridge Display Technology, who invented LEPs.
Ho hum for the life of a bear
'Like' is easier to spell than 'approximately.' Us 'Yanks' are terrible at spelling, you know.
Karma: Professionally Doomed (mostly affected by inability to keep opinions to self)
That's pretty darn cool. I need to get one of those and velcro it to my backpack. I would then be uber-geek at the CS club.
USA-Democracy is 270 million YESes and NOes a day, not one every four years.
Y'know this is kewl and all, but it's just what we need: more light! It's bad enough we have enough excess light to see most of the US from orbit. Before we start postering the earth and chroming the moon, let's at least figure out that street and highway lights should point down. Not into the atmosphere.
Anyone who has lived in the city and moved to the country or vice versa knows what I mean.
Light Posters?! Yippee. Once this tech becomes available to the yokel population we're going to see huge self lit billboard along the highway. Hope you don't need to see while you drive.
Anonymous cynic
This seems to be the story Fox summarized:
t s2 ftse2fmst2f.html
http://www.azstarnet.com/star/mon/11112tinyligh
size
n.
Any of several gelatinous or glutinous substances usually made from glue, wax, or clay and used as a glaze or filler for porous materials such as paper, cloth, or wall surfaces.
Cool!
--
(if you're still looking for the point, it was back there, in the post. </sig>)
Into your clothes? Why not just print directly on your skin and display a picture of an outfit. Thay way, it always fits, and if you need to switch from formal to informal, it can be done with the remote control you carry in your pocket... damn. Nevermind.
"Da ist ein Technölüst in mein Unterpanten!"
http://www.forbes.com/columnists/2001/01/02/0102dv orak.html
A Plastics Revolution
John C. Dvorak, Forbes.com, 01.02.01, 12:01 AM ET
This is the week where I run ahead of the pack and tell you what the future holds. The idea is to pick those killer tech stocks for 2001 and beyond.
After the fiasco of 2000 and the collapse of dot-com stocks, something funny happened. The dot-bombs took with it the entire technology sector, pushing them to 52-week lows and presenting numerous long-term investment opportunities. But instead of telling you to buy "wireless" and "infrastructure"--like everyone else is going to do--I want you to look at something completely different.
The direction of high-tech might be shifting gears in ways we are just beginning to understand as the development of "conducting polymers" moves forward into real products. As kids we always thought of plastic as an insulator. This is no longer true and the entire field of conducting polymers was given a scientific blessing when Alan Heeker, Hideki Shirikawa and Alan MacDiarmid won the Nobel Prize in chemistry for their work with conducting polymers. I never expected chemistry to bump into electronics like this, but it has.
Organic displays. The hottest segment in the market for 2001 might be display technology. There are numerous trends and counter trends which are about to emerge and create an interesting volatility. This happens when an established technology goes into overproduction just as new competing technologies emerge, creating a shakeout and an eventual winner that becomes a dominant player--perhaps a gorilla--and the stock of that company skyrockets.
In displays, we are approaching an overproduction of active matrix liquid crystal displays (LCD), which should depress the market for these displays. Note: If you've been waiting to get a flat panel, start shopping in a few months and you should find some incredible deals.
Just as this is happening, a number of new technologies are emerging to take away the low-end small screen market away from the LCD makers. This includes the flat cathode ray tube from Candescent Technologies and a promising technology dubbed organic, light emitting diode (LED). These new LEDs which can be turned into high-speed flat panels are competitive with LCDs, but with many advantages.
Brightly glowing plastic. Look for this material to be referred to as a light-emitting polymer. And look for what seems to be a semantic variation called organic electro luminescent displays. Whatever these things are finally called, they are cheap and will dominate the displays of handheld devices in the near term and possibly all displays in the long term. It's unknown when these things will appear in a larger 15-inch plus format. But you'll see them on cell phones this July. This development may also trigger a more interesting phone.
Organics chips. The "plastics" revolution doesn't end with new display polymers. It gets weirder with actual semiconductors, potentially made from plastics, with the circuits printed on them by an ink-jet printer. The concept was recently demonstrated at the International Electron Devices Meeting in San Francisco. Generically dubbed "organic" circuitry, actual semiconductor devices have been demonstrated using special plastics and high-resolution ink-jet printers from Epson. You should note that the size of these devices are huge by comparison to normal circuitry--around 20 times larger. But the fact that any of this works in the first place is remarkable. And there seems to be a sense that by 2005, there will be commercial applications.
Much of the experimentation is taking place at Pennsylvania State University and the University of Cambridge. Cambridge is working with Seiko-Epson and a regional Cambridge operation called Plastic Logic, which seems devoted to commercializing some of these ideas.
The most interesting thing about the plastic semiconductor revolution is its cheap disposable nature. In fact, there is a lot of talk nowadays about the disposability of many of the products we buy. You can't actually fix anything any more. It's simply cheaper to buy a new one.
There is a certain sentimentalism about the old "tube" days when you could take vacuum tubes out of a device that was failing and suddenly it worked again when a new tube was inserted.
Old-timers always forget what a hassle the tube test was. In fact, these plastic devices are expected to last as long as a decade before failing completely--not as long as current silicon technology should last but much longer than a tube. Then it gets tossed--recycled perhaps.
Exactly where the new plastics revolution is going to take us is unknown. I suspect it will be to a new level of inexpensive, more eco-friendly yet powerful devices. Once the little organic LEDs appear on the market in 2001, you'll start to hear a lot more about this new revolution.
Yay! The U of A's optics department is second to none. Here's the homepage for that department:
s p
http://www.optics.arizona.edu/Directory/default.a
The FoxNews article is pretty slim, and I can't find "paper-thin OLED" on that departmental page, though I suspect the "Administrative and Research Web Sites" link would be a good start...
Slip the two cylander bundle from your pocket. Inside of one are the AAA batteries, inside the other is your stylus. press the catch and pull open your scroll.
Probably should back the scroll with a layer of kevlar. Does anyone know if silicon carbide is flexible?
'Like' you should talk about the way yanks talk, you southern hick.
How about getting drywall presprayed with this stuff?
;)
Just think of how much you could save on your LSD budget if your walls could bleed by themselves?
The Panel
Furthermore, from 1998:
Ink-jet printing of light-emitting polymers
Ink-jet printing of light-emitting polymers onto a thin film has been demonstrated by a Princeton group (James Sturm, 609-258-5610), bringing about a new way to fabricate a light-emitting diode (LED) made of polymers. An LED is typically built by surrounding a semiconducting material with two electrodes. When an electron from one electrode and a hole from the other meet in the semiconductor, they can annihilate each other and release the energy as light. LEDs in which the semiconductor materials are polymers instead of inorganic materials such as gallium phosphide would be cheaper and easier to manufacture. To make polymer LEDs, the Princeton researchers replaced the ink cartridges of a conventional ink-jet printer with a polymer solution containing the semiconducting polymer polyvinylcarbazol (PVK) and a light-emitting dye dissolved in a chloroform solvent. The researchers printed this solution onto a thin polyester film coated with indium tin oxide (ITO), which served as one of the electrodes. Over the polymer layer they deposited a metal film, which served as the other electrode. With this technique, they produced LEDs emitting green light. In separate experiments, they used the ink-jet printer to make dot patterns of PVK mixed with either red, green, or blue dyes on the ITO-coated polyester film, although they have not yet used these patterned films to make LEDs. (T.R. Hebner et al., Applied Physics Letters, 2 February 1998.)
Update 358o .pdf
11 Feb 98 http://www.ee.princeton.edu/~sturmlab/pdf/apl/ijp
Hey Timothy, UofA is here, and the school you're talking about is here
Why the fuck is the above post moderated -1 FLAMEBAIT?
Seems to me, "Flamebait" is subjective, and usually reserved for people with a HISTORY of trolling. You can view anyone's history before moderating, so this is not some cheezy "fake account" or AC.
Plus it was the only post with a URL that directly linked the source, removing the "middleman". Such things, or well *reasoned* rants, usually get +5 on Slashdot.
At the lab where I worked we needed a radioactive test pattern for a PET scanner, so I hit on the idea of filling an old inkjet cartridge with oxygen-15 labelled water.
The half-life is only a few minutes, but that's long enough for the print to dry and to run the test.
Don't try this at home though, we had 10cm thick lead to put the printer behind!
-Yarn - Rio Karma: Excellent