As we've seen, it doesn't exactly take all that much to whip up a homemade multitouch system, but that doesn't make Bridger Maxwell's science fair project here any less impressive, which wraps everything into a fairly tidy, OS X-based package. Like other similar systems, this one relies on a slew of LEDs (28 of 'em in this case), along with a webcam modded with an IR filter, and piece of acrylic and a spare LCD screen for the surface itself. To show it off to its fullest potential, Bridger whipped up an app of his own for OS X that lets users flip through XKCD comics with suitably fancy graphics thanks to OS X's Core Animation. There doesn't seem to be any video of the rig in action, unfortunately, but you can find plenty of pics of the entire build process at the link below.

[Via TG Daily]

It looks like everybody's source of wonderfully useless gadgets has managed to pull yet another trick out of its hat, with Brando now breaking the common sense mold once again with the so-called " Stylus Hanging Bluetooth Headset." Apparently targeting those that find traditional Bluetooth headsets a little too convenient, this wonder of convergence crams a full-fledged Bluetooth headset into an over-sized PDA stylus, which will let you both talk on the phone and use your PDA -- just not at the same time (unless you use the earphone attachment, that is). $30 and it's yours.

[Via The Raw Feed]

It's been a little while since we've heard of any significant progress in field-emission displays, but a group of researchers at the University of Illinois in Urbana Champaign now seem to be shaking things up a bit, with them touting new copper nanowires that could one day be used for ultra-thin FED screens. Specifically, the copper nanowires developed by Kyekyoon Kim and Hyungsoo Choi are between 70 nanometers and 250 nanometers wide, and can be "grown" on various surfaces including silicon, glass, metal, and plastic. As Technology Review reports, in the case of field-emission displays, the nanowires would be used to fire electrons at phosphor particles on a screen to light them up. That process would result in displays that are not only thinner than traditional flat-panel displays, but brighter and more energy-efficient as well -- assuming they ever find their way out of the lab, that is.

The folks at Xerox has been working on their "erasable paper" idea for some time now, but it looks like they've been making some real progress as of late, with them now even going so far as to say that they hope to have an actual product available sometime next year. The paper itself, however, appears to still use the same basic technology they've been working on all along -- namely, a coating of photosensitive chemicals that turn white when hit by ultraviolet light or react to product text when scanned specific wavelength of light. The text can then be erased on command by feeding it through a special printer, or left to disappear on its own over a period of 24 hours. On the downside, the paper is apparently useless if it's been folded or wrinkled, or written on with a pen. No word on an expected price for the paper or printer just yet, unfortunately, but Xerox seems to be betting that the savings in paper (and consequential environmental benefits) will be enough to offset whatever premium they'll likely cost.

[Via The Inquirer, image courtesy of Xerox / Greig Reekie]

Having trouble keeping your fingers, thumbs, or eyeballs on the pulse of modern science? Do you find yourself in the throes of panic due to misunderstandings in molecular goings-on? Did the latest aircar, split atom, or robotic insectoid go buzzing over your head before you had time to ready a response? Don't worry friends, The Professor is here to help. Though not an actual scientist, professor, or even a college graduate, he can help guide you through the cascading, complicated, and spasmodic visionary vistas of human invention and achievement as smoothly as a hot knife descending into softened butter.

It looks like we've got a bit of intercontinental solar power action today, with Silicon Valley start-up SUNRGI and the University of Tel Aviv both recently boasting of some advances in the field, which they each unsurprisingly say could change things in a big way. For its part, SUNRGI claims that its "concentrated photovoltaic" system (pictured above) can produce as much electricity as much larger solar panels thanks to its use of lenses that magnify sunlight 2,000 times. That, they say, could allow the system to produce electricity for as little as 7 cents per kilowatt hour, or roughly the same price as coal -- and as soon as mid-2009, no less. Not to be outdone, some scientists at the University of Tel Aviv say they've managed to create some super-efficient photovoltaic cells of their own that cost "at least a hundred times less than conventional silicon based devices." The key to their system, it seems, is the use of some good old fashioned photosynthesis, which they were able to achieve not-so-old-fashionedly with the aid of some genetically engineered proteins and a little bit of nanotechnology. As with SUNRGI, they're also promising to get the system out the door as soon as possible, with them reportedly aiming to get a "cost effective" 10mm X 10mm device produced "within three years."

Read - USA Today, "Start-up: Affordable solar power possible in a year"
Read - EETimes, "Researchers claim photovoltaic cell advance"

[Via Next Big Future, thanks Jonathan]

We first heard about this laser-guided wheelchair way back in 2006 but didn't really have much more than promises from the team behind it about exactly what they had in store. As New Scientist reports, however, it seems that the folks from Lehigh University and Freedom Sciences are still hard at work at it, and they're finally showing off some of their progress. The wheelchair is apparently still not entirely automated though, with it needing to be driven to the rear of the vehicle by remote control, after which the on-board LIDAR system kicks in and loads it onto the lift all by itself. Not surprisingly, the estimated price for the eventual commercial version has also gone up since we last heard from the team, with it now set to demand $30,000 (as opposed to $15,000 to $20,000) when it goes on sale later this year, assuming it gets the necessary FDA approval. Until then, you can head on over after the break to check it out in action.

Sure, there's plenty of hackery going on with interactive whiteboards these days, but that doesn't mean plain old marker-based boards have been left out of the fun completely, as evidenced by this latest contraption devised by Sprite_tm. As you can see in the video after the break, he's managed to rig up a slightly precarious system that'll write out any message you send it over the web, and with surprising legibility no less. To do that, Sprite salvaged some parts from an old scanner and printer, along with an ever useful microcontroller, an x/y stepper system, and some rather clever touches like an electromagnet to keep the marker on the board. He even bravely opened up the board to the public, although that unsurprisingly doesn't appear to have lasted very long. If you want to give one a shot yourself, however, you can find most of the details you'll need and the necessary source code by hitting up the read link below.

[Via Slash Gear]

We've seen plenty of attempts to mimic spiders in robot-form, but that's not the only bit of inspiration arising from our eight-legged friends, with a number of other researchers also doing their best to artificially replicate the way a spider spins silk. Now, according to the BBC, it seems that a team from the Technical University of Munich has made some significant progress on that front, which could one day lead to a new means of manufacturing strong but lightweight materials. Specifically, the team created a "device" consisting of three channels etched into a piece of glass, which allows for different combinations protein and salts to be mixed together and extruded as a fiber. They are quick to point out, however, that the resulting fiber is not of "particularly high quality," and that while it's a step forward, the whole idea is still "a very big puzzle and there are many pieces missing."