Skip to Content

AOL Tech

Light posts

Web

Harry Potter's Invisibility Cloak Might Actually Happen, Thanks to Physics

Hold onto those wands, all you would-be wizards. One of Harry Potter's most valuable possessions might soon make the jump from the page to the real world. According to The Daily Mail, researchers at Imperial College in London received an $8.1-million grant to develop an invisibility suit. That's right, you could throw on a garment and sneak around, just like Harry did while stalking the halls of Hogwarts.

The idea isn't as far-fetched as it initially sounds. When light hits an object, it bounces off the surface and into the eye, which is what makes it visible to us. Using "meta-material," these scientists want to force light waves to flow around an object (think water flowing around a rock in a river), not bounce off of it, which would make the object invisible to the eye. But right now, all this is simply theory. Next, the researchers must engineer a material that can manipulate light waves in such a manner. As we've said before, that's much easier said than done thanks to a little thing we call physics.

If this idea becomes reality (trust us, we're keeping our fingers crossed), we have one simple request: Please don't model the suit's look after Harry and the gang's school uniforms. That just doesn't work for us. [From: The Daily Mail]

Green Tech

'Vampire' LED Lamp Sucks Power From Phone Cord

LED Lamp Gets Free Power from Phone Cord
While this lamp is hot pink and looks like a computer mouse with some kind of mutant growth sticking out of its back, it will cost you literally nothing to run.

This monstrosity has eight LEDs that provide light to read by, and rather than jacking up your electricity bill, it runs on power siphoned from your local telco. You see, rather than plugging into a standard power outlet, this lamp has an RJ11 plug (commonly known as a phone jack) on the end that plugs into that weird looking box in the corner that you haven't touched since cell phone coverage became pretty much ubiquitous. The reading light works because land line phone cords carry a small amount of electricity which is required to power wired handsets (remember those?). Interestingly, that power flows whether or not you have active phone service and, best of all, won't go down in the event of a blackout.

Read more →

Cameras

'Dark Flash' Eliminates Annoying Light From Picture-Taking Process

Flash photography lets us, among other things, take pictures in dimly lit situations. Unfortunately, when taking pictures of people, it often leads to the dreaded red eye and/or the deer-in-headlights effect, with blown out highlights and harsh shadows. The light itself can also be distracting, hence its exile from many museums, concerts, and public performances. But if NYU student Dilip Krishnan and assistant professor Rob Fergus's "dark flash" concept can iron out some wrinkles, all those problems may soon be a thing of the past.

According to New Scientist, this innovative flash works by emitting light in a wide range of frequencies, and then by filtering out the frequencies that wind up being visible. The result is a sharp, but oddly tinted image. To compensate for distorted colors, a second, flash-free image is taken immediately afterward, and the two are combined in software to produce a naturally toned, well lit image (see example above). Because the invisible flash depends upon ultraviolet (UV) and infrared (IR) light, objects or materials that absorb said kinds of light won't appear in the photos. Even with that caveat, though, we could be looking at the biggest thing in cameras since, well, the flash. [From: New Scientist via Engadget]

Got Allergies? Beam Some Light Up Your Nose.

We come across a lot of 'interesting' gadgets here at Switched HQ, but the Sneezerbeam has us especially confused. Spring is here and you're probably suffering from allergies. Not anymore -- get yourself a Sneezerbeam and jam the device up into your nasal cavities; it will blast your sniffer's cells with beams of concentrated light to keep them from releasing histamines, which trigger allergy symptoms.

We're not sure how light will affect your nasal cells (unless you're belting them with lasers or UV rays or something), and you're sure to look like a goober wandering around the office with backlighted eyeballs and electric protrusions sticking out from your nose. Still, if you feel compelled to give it a go -- and you live across the pond -- you can buy it here (alas, it's only available in the U.K.). [From: Dvice]

Advice, Green Tech, Tech Tips

Save Energy -- Switch to Compact Fluorescent Bulbs (CFLs)

If you haven't already, replace your household light bulbs with Compact Fluorescent versions. If every American home switched just one bulb, it would reduce greenhouse gas emissions the same as pulling 800,000 cars off the road.

As opposed to incandescent bulbs, CFL's last up to 10 times longer, use about 75-percent less energy, and will save you around $30 over its lifetime.

On the downside, they contain poisonous mercury and therefore need to be recycled instead of thrown in the garbage, which can be a hassle. If they break, it's trouble, but you can visit Energystar.gov for cleanup instructions.

Click here for more Tech Tips.

Green Tech

New Philips LED Light Bulb Lasts for 45,000 hours


Philips has been hitting us with some out-there lighting concepts lately, but the company's Master LED light bulb is actually already on sale in Europe and is set to brighten up Stateside lives around July. The 40W-equivalent bulbs should run between $50 and $70, and expected lifetime is set at 45,000 hours -- just slightly more than a CFL's 10,000 or a standard bulb's 750 hours. The Master is certainly a damn sight nicer looking than the other mutant LED bulbs we've seen, but we'll see if consumers are ready to jump on another more-expensive-upfront lighting tech so soon after CFLs have hit the mainstream. [Via Core77]

Green Tech

IKEA starts selling totally hip SOLIG solar lighting devices


We've heard the excuse a gazillion times: "Yo, I want to go solar, but like, where do you even buy this stuff? Oh snap, 0 percent financing on a Hummer H2!" Finally, you can have a solid answer to that very quip (the first part, at least), as household megastore IKEA has begun stocking (in store; online is coming soon) a new series of solar-powered lighting supplies. The SOLIG series contains a handful of solar light sticks, orbs, garden lights, chain globes and even posts, all of which will surely brighten your outdoor patio, flower bed or Earth-friendly RV. Now, if only it were simple to relocate your life to southern Arizona in order to enjoy these more effectively... [Via Inhabitat]

Computers

German Scientists Think LEDs Are the New Botox


All of us here are young, beautiful, and vigorous, but we understand that time is not always as kind to everyone else as it has been to us -- that's why we're giving you the heads up that German scientists claim that they were able to reduce wrinkles by subjecting a test subject's skin to regular ol' LED lights daily over a period of several months. It seems that at a certain intensity the light dives into skin tissue and alters the molecular structure of water that would otherwise immobilize elastin, a protein that keeps skin healthy and, y'know, elastic. The researchers believe the tech can be "converted to deep body rejuvenation programs," which we assume entails more than just taping our faces to our LED-backlit screens -- but we'll try it just in case.

[Via The Earth Times]

Audio/Video, Computers

GE Creates OLED Printer


Maybe the incandescent light bulb has been sitting in its socket-shaped throne for too many years -- GE thinks so, anyway. GE R&D guys have produced a machine that prints OLED materials newspaper-style onto 8-inch sheets of metal foil in hopes that the sheets -- which can be pinned to just about any surface -- will start the process of home lighting biz regime change in 2010. Picture, if you will, wallpaper or window blinds that provide soft, diffused lighting for the living room after dark -- no need for special fixtures, just a wall plug. OLED lighting isn't yet cost-efficient for the average consumer, but GE hopes that will change soon. In the meantime, expect to see these sheets in a trip-out Flaming Lips concert in the somewhat-near future. [From: CNN]

Interactive Floor Reveals a Trail of LED Footprints



Far from being the first LED-infused floor we've seen hipsters and hippies break dance and boogie down on (respectively), Sensacell's latest contraption still manages to stand out by bringing back memories of when mouse trails really were the coolest thing about an operating system.

Flashbacks aside, the installation -- which is currently at the entrance to the Comunitat Valenciana in Spain -- possesses over 1,000 interactive modules, each of which include capacitive sensors and a LED lighting system. The integrated tech enables it to recognize when someone is walking over it and consequently light up as if to leave an eye-catching LED trail of their path.

Can you imagine how many hours days you could entertain an ageless kid with this? Video after the jump.

Read more →

BMW Concept Car Has Skin, Skeleton, and Blinking Eyes



This angry-looking skinned beast is the BMW GINA Light Visionary Model. GINA, which stands for Geometry and Functions in 'N' Adaptations -- whatever that means -- is shelled in a textile fabric wrapped around a carbon fiber and metal frame.

This means that the skin and skeleton can bend and contract like, well, real skin and skeleton. For instance, the doors bend up, the headlights are exposed like eyeballs under eyelids, and the hood opens from the center like some sort of gaping maw to expose the engine. Even the interior is skinned and modular: only the dash displays that you need at any item are available via openings.

Don't get too excited, though -- this is purely a concept and nothing you'll see in a showroom any time soon. We can dream, though, right? [Source: Autoblog]

Green Tech

Running Shoes That Light The Way With Each Step

Pioneer self-charging concept running shoe.

Do you run at night? We've found the shoe for you. Down dark alleys and through the murky underbrush (are you sure you really want to run in such places), your way will be lit with this concept shoe from the folks at Pioneer.

With each pavement pounding step, the shoes power up a small battery, which keeps a small light going, letting you see what's before your feet.

The concept seems familiar in a way to what the Toyota Prius does, garnering power with each step on the brakes to keep that battery charged (except on this small scale, the mechanism is, of course, tiny).

The other obvious reminder is of those shoes for kids that blink maddeningly with each step (except, of course, those are not self charging).

The LEDs on these feet wheels will keep going for 12 hours, according to what we can parse from the postings.

From Yanko Design.


Related Links:

Green Tech, Domestic God / Goddess, Creative Type

The Cheap Light That Lasts 12 Years!



A company that sells glow-in-the-dark-paint has invented another way to combat the forces of darkness. MPK Company, while not in league with Harry Potter or Luke Skywalker, has conjured up a new light source called Litroenergy. These self-luminous, tiny particles, called Litrospheres, have a remarkable half-life of about 12 years and are encased in a microsphere container.

In addition, they are non-toxic and do not require a source of electricity to operate, which means the technology is extremely cheap! Litrospheres are also said to be unaffected by temperature and up to 5,000 pounds crush resistant. The Litrospheres, which can be injection molded or used in paint, release no ultraviolet rays.

Litroenergy works by emitting electrons from a radioactive gas that is contained by the durable microsphere capsules. Able to transmit continuous light in virtually any color, the Litrosphere light seems to have one major drawback: It is not nearly as bright as light powered by electricity. The Litrosphere glow translates to about 20 watts in an electric light source.

The makers at MPK envision Litroenergy being used for safety purposes, such as lining life rafts or safety markings. In the future, the company sees uses extending to bicycles, sporting/camping equipment, toys and other novelty items.

Consumers should rejoice at this cheap, safe, durable and long-lasting font of illumination. Imagine putting Litrospheres in the creepy dark parts of the house, like the attic, or in alleyways that give you the willies. Which gets us thinking about its Halloween applications...

From PESWiki Via TreeHugger

Related Links:

Switched Video

Follow Switched on Twitter

Deals of the Day

Latest Reviews from CNET.com

CNET provides the latest tech news, unbiased reviews, videos, podcasts, software, and downloads, making tech products easy to find, understand and use.

Top Product Reviews

  • Home Audio Reviews

    9.0 out of 10

    Definitive Technology BPX
    Works great with Dolby Pro Logic and Dolby Digital. Full Review

    9.0 out of 10

    Denon AVR-4306 (black)
    Incredibly well-featured 7.1-channel receiver; excellent sound quality; three HDMI inputs; converts analog video to HDMI output; upconverts analog video to 720p/1080i HD resolution; iPod and USB MP3 player connectivity; Internet radio and MP3/WMA streaming audio via built-in Ethernet port; XM Satellite Radio compatible; touch-screen remote; multizone, multisource operation; browser-based control via home network; accurate autocalibration routine. Full Review

    8.8 out of 10

    KEF KHT3005 (black)
    The KEF KHT-3005 is one compact, beautifully designed speaker package with solid aluminum satellites that feature unique driver technology to produce incredible clarity. Meanwhile, the equally astounding dual 10-inch, 250-watt powered subwoofer delivers ultradeep bass. Full Review

  • Cell Phone Reviews

    8.7 out of 10

    SignalBoost Mobile Professional Amplifier Kit
    The Mobile Professional Amplifier delivers a powerful signal boost to your cell phone. Also, it offers a compact design and easy setup. Full Review

    8.6 out of 10

    Wi-Ex zBoost YX510-PCS-CEL cell phone signal extender
    The Wi-Ex zBoost YX510-PCS-CEL significantly boosts your cell phone reception and is easy to operate. Also, it uses a wireless connection to your phone. Full Review

    8.6 out of 10

    Turbo Charge Tc2 portable cell phone charger
    The Turbo Charge Tc2 portable cell phone charger successfully delivers emergency power to your cell phone. It's easy to use and comes with a couple of surprising features. Full Review

  • Digital Camera Reviews

    9.3 out of 10

    Canon EOS 1D Mark III
    Extremely fast, 10-megapixel continuous shooting; very low noise; highly customizable; well-designed body with weather sealing; 3-inch LCD; abundant optional accessories. Full Review

    9.3 out of 10

    Nikon D3 (body only)
    Full-frame sensor; well designed, pro-level weather-sealed body; very low noise, even at extremely high ISOs; fast. Full Review

    9.0 out of 10

    Canon EOS-1Ds Mark III
    Very low noise, high quality images; 21.1 megapixels; live view shooting; pro-level build-quality and performance. Full Review

  • Desktop Reviews

    8.5 out of 10

    Apple iMac (24-inch, 2.8GHz)
    A minor specification update results in some significant performance gains; graphics upgrade an option on this 24-inch model; sleek, polished design didn't receive an update, but we won't start clamoring for a new design until the current one is at least 12 months old. Full Review

    8.4 out of 10

    Apple iMac (27-inch, 3.06Hz Intel Core 2 Duo, ATI Radeon HD 4670, Fall 2009)
    Largest display among all-in-ones; fast dual-core CPU makes up for lack of quad-core (mostly); finally has an SD card slot; wireless mouse and keyboard; Mini DisplayPort input ripe with possibility. Full Review

Featured Galleries

Nissan Land Glider
Vintage Keyboards
Retro Computer Logos
Vintage Computer Festival
Motorola CLIQ
iPod touch
iTunes 9
Video iPod Nano
The Beatles: Rock Band

 

Switched Desktop

Get the New Switched Desktop

Latest tech news, Switched mail, and more.

AOL Tech Network

Resources

Autoblog

Daily Finance

Download Squad

Engadget

Joystiq

Urlesque

Fanhouse Main

WalletPop

Gadling