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Turning sunlight into clean fuel is now cheap and simple
Scientists have already produced artificial photosynthesis, but it has been an exotic process until now. You aren't about to replace the oxygen-giving plants around your home, in other words. However, researchers at Florida State University researcher have found a way to make it practical. They've developed a single-layer manganese oxide material that efficiently traps sunlight and makes it easy to break down that energy into hydrogen and oxygen. Current light-gathering techniques, like solar cells, frequently need multiple layers just to work at all -- this would be far cheaper and simpler to make.
The Terrible Turnip is a pet collector's best friend
If you're on a quest to catch all of the wild pets Azeroth has to offer, there's one pet you'll want to add to your arsenal as soon as possible: the Terrible Turnip. Why? Two words, my friends: Weakening Blow. Weakening Blow is an Elemental ability unique to the Terrible Turnip. It is, perhaps, the most powerful tool in a pet collector's arsenal. Weakening Blow cannot reduce an enemy's health below 1. That means, if you're using your Terrible Turnip, you'll never again accidentally kill that rare-quality Nether Faerie Dragon you've been spending hours attempting to find. It also means you don't need to continuously level mid-range pets to prevent your level 25s from insta-gibbing critters in old world zones, should you need to go back and find something you missed. The Terrible Turnip, even at level 25, will never kill those low level critters. In the world of pet collecting, nothing is more essential to your toolkit than Weakening Blow.
Spherical glass lens concentrates sunlight by up to 10,000 times, boosts solar cell efficiency
Eking out more power from solar cells is an ongoing challenge for scientists, and now architect André Broessel has developed a spherical glass energy generator that's said to improve efficiency by 35 percent. Acting as a lens, the rig's large water-filled orb concentrates diffused daylight or moonlight onto a solar cell with the help of optical tracking to harvest electricity. In certain configurations, the apparatus can be used for solar thermal energy generation and even water heating. In addition to the oversized globe, Broessel has cooked up a mobile version of the contraption for domestic use and an array of much smaller ball lenses with dual-axis tracking that offers 40 percent efficiency. These devices aren't the first venture into concentrated photovoltaics, but they are likely among the most visually impressive. If the Barcelona-based architect's vision of the future comes true, you'll be seeing these marbles incorporated into buildings and serving as standalone units. Hit the source links below for the picture spread of prototypes and renders.
All-carbon solar cell draws power from near-infrared light, our energy future is literally that much brighter
What's this orange-like patch, you ask? It's a layer of carbon nanotubes on silicon, and it might just be instrumental to getting a lot more power out of solar cells than we're used to. Current solar power largely ignores near-infrared light and wastes about 40 percent of the potential energy it could harness. A mix of carbon nanotubes and buckyballs developed by MIT, however, can catch that near-infrared light without degrading like earlier composites. The all-carbon formula doesn't need to be thickly spread to do its work, and it simply lets visible light through -- it could layer on top of a traditional solar cell to catch many more of the sun's rays. Most of the challenge, as we often see for solar cells, is just a matter of improving the energy conversion rate. Provided the researchers can keep refining the project, we could be looking at a big leap in solar power efficiency with very little extra footprint, something we'd very much like to see on the roof of a hybrid sedan.
Delaware Ph.D. student hopes to solve energy woes with renewable hydrogen production
Hydrogen fuel is a fickle mistress. On one hand, it teases us with the promise of renewable energy and a cleaner tomorrow. On the other hand, it's most often produced with natural gas as the source -- hardly the clean break from fossil fuels that many had envisioned. Fortunately, there are other methods to harness this abundant element, and a doctoral student at the University of Delaware may have created a worthwhile process. Similar to previous research we've seen -- which relies on ceric oxide and energy from the sun -- Eric Koepf has designed a reactor that combines zinc oxide powder, solar rays and water to derive hydrogen as a storable energy source. Most intriguing, it's thought that the zinc oxide byproduct from the reaction will be reusable -- a potential gateway to sustainable energy. Koepf will spend the next six weeks in Zurich at the Swiss Federal Institute of Technology, where his reactor prototype will be put through its paces to determine its efficiency and effectiveness. If successful, his advisors envision that one day, we may see giant versions of Koepf's reactors producing hydrogen on an industrial scale. We certainly won't fault them for dreaming big.
'Invisible glass' could reduce display glare, fails as food-in-teeth mirror
There's nothing worse (seriously, it's scientifically proven) than catching some serious glare on your smartphone, unless you're checking for spinach in your teeth -- but thanks to Nippon Electric Glass' new "invisible glass," an overly reflective surface may be a problem of the past. According to our friends at Tech-On, the company has developed a new type of vitrine that reduces glare by using a special film on each side of the substrate, which allows more light to pass through the layers rather than bounce off the surface. Normal glass reflects around eight percent of light, while the new variety only rebounds 0.5 percent, dramatically reducing the luminous reflectance to around 0.1 percent or lower. Looks like your yearning to purchase this thing is finally justified.
Solar Ship takes to the skies powered by good deeds and sunshine (video)
The Solar Ship is a little bit airplane, a little bit blimp and all good intentions. The hybrid dirigible combines the cockpit and landing gear of a plane with the top of a blimp, the latter of which is lined with solar panels. The green vehicle can take off from and land on short runways, an ideal feature in a craft designed to deliver supplies to areas hit by natural disasters or with otherwise rough terrains. The ship will come in three sizes, and the company will be offering up more public demonstrations next year. If you can't wait that long, however, you can check out a test run after the jump.
New solar machine could generate hydrogen fuel, food for your future vehicle
We're hesitant to file this one in the folder marked "Awesome Things That'll Never Happen," but it's definitely on the watch list. A new prototype solar device has been concocted to convert sunlight into fuel, much in the same way a plant does. Eco-minded folks will probably understand that conventional photovoltaic panels "must use the electricity they generate in situ," and thus, cannot deliver energy at night; this here device takes a rather unorthodox approach, using the sun's rays along with ceria (a magical, marvelous metal oxide) to "break down carbon dioxide or water into fuels which can be stored and transported." In theory, at least, the device could be used to create hydrogen and / or carbon monoxide, with the former being obviously useful for fueling up hydrogen-based cars of the future. Sadly, the existing prototype is horribly inefficient -- only around 0.7 percent of the solar energy can be converted into fuel -- but researchers are adamant that they can boost that to nearly 20 percent in time. We'll check back in a decade or so to see how things are progressing.
Pixel Qi turns into ideal 10-inch companion display with wired and Wireless USB, 1.5W power needs
Pixel Qi has today announced it's taking the next step in its quest for global domination of sunlight-readable displays. Partnering up with German outfit Display Solution AG, the company is about to start selling its 10-inch, 1024 x 600 panels as standalone units, which you'll be able to hook up to your computer or smartphone via USB, either the wired or Wireless version. Power consumption maxes out a measly 1.5W with the LED backlight turned on, meaning that one USB tether will be sufficient to feed it both power and data. We don't know exactly how long we've waited for a secondary screen with this sort of flexibility, but it's sure been a while. Look for Display Solution to start selling these hotcakes next month.
iPad class action lawsuit heats up
I guess when you're the big guy in town, everybody paints a target on your back. First, Apple and AT&T were sued for the data plan change on the iPad, and now another class action lawsuit about the iPad is underway in California, claiming that the tablet overheats way too quickly when held or placed in warm sunlight. The lawsuit alleges that the iPad "does not live up to the reasonable consumer's expectations created by Apple," and that it "turns off, sometimes after just a few minutes of use," when used in bright sunlight. The suit, filed in Oakland, seeks "unspecified damages," and as far as I can tell, it's still in the earliest preliminary stages. All of Apple's devices tend to overheat to a certain extent when used to their full potential, and anyone who's left an iPhone or an iPod in a hot car knows that there's a limit on what these things can take. But at the same time, even when I've had my iPhone overheat on me, it usually just takes a few minutes of sleep or standby to bring it back to normal -- hardly an inconvenience worth suing over. We'll have to wait and see what happens with this one.
Super AMOLED vs AMOLED vs LCD in direct sunlight... fight! (video)
By now you know that (one of) AMOLED's Achilles' heel is readability in direct sunlight. But Samsung's been working hard to fix that with its new Super AMOLED technology. Techblog took the display to task by pitting the Samsung Galaxy S (4-inch, 480 x 800 pixel Super AMOLED) against the HTC Desire (3.7-inch 480 x 800 pixel AMOLED) and Sony Ericsson XPERIA X10 (4-inch, 480 x 854 pixel TFT LCD). It's clear from the video embedded after the break that the LCD still has the edge in the harsh Greek sun, but the Super AMOLED certainly makes a much stronger showing than its AMOLED sib. In fact, differences in visibility between the LCD and Super AMOLED are often indistinguishable, like the picture above. That'll be good news for us just as soon as Samsung can start meeting demand... regardless of what Stevie J has to say. Check the video after the break and be sure to click the source for some more side-by-side pics, including a few taken indoors where that Super AMOLED display really shines.
Answering your #1 question, as fast as we can
Earlier today, we asked you (via Twitter and @ask_tuaw) for your top inquiries about the product everyone's talking about. While we can't give you first-person photos and video -- yet -- we can give you an answer, straight from the lab and the lap, to the most popular question: Can you read iBooks in direct sunlight? The answer, surprisingly enough: Yes, you can. Even in bright sun, the high-contrast black type on a white page background was clearly legible, says our experimenter. In fact, the display looks quite a bit like the Kindle's e-ink screen under those lighting conditions. What does not look good in bright sun: video playback. The dark screen doesn't pump out quite enough candlepower to make TV shows or movies easily visible. However, that's a failing of most portable video devices, so you can't ding the iPad for it. Much. As many have inquired, the screen does hold fingerprints and you can see them most annoyingly in the sun -- but the oleophobic coating means a quick sleeve swipe fixes that. Our question-answering squad wasn't in a situation to deal with iTunes and networking details, unfortunately, but we'll try to get more on that for you all soon.
Samsung Wave shows what's Super about its AMOLED display by going outdoors (video)
Direct sunlight -- is there anything more terrifying for an OLED screen? Up until now, you had to sacrifice some outdoor performance from your phone's display in order to get the spectacular contrast and viewing angles on offer from OLEDs. Up until now. Samsung's Wave has been taken for a quick spin by Dutch publication portablegear and while we've no idea what their feedback on the phone was, the moving pictures speak for themselves. The phone remains entirely readable and usable in spite of the bright environment around it -- if you question how much light is hitting it, just take a look at the hand of the person holding it -- and color saturation is maintained throughout. Samsung promised us a great media experience on the handset, but this quick demo places its Super AMOLED tech a clear step above... well, every other display out there. The wildly impressive video awaits after the break, and you can find more imagery and our hands-on impressions here.
Pixel Qi's 3Qi LCD screen sized up with Kindle, CTO sheds light on your questions
Turns out Pixel Qi's CTO Mary Lou Jepsen reads Engadget, or at least the posts relevant to her company and her invention, the 3Qi screen. In addition to a side-by-side comparison of the display against the Kindle and a few other devices, in an interview with techvideoblog, she can be seen going through our most recent post and answering some of our readers' questions, including clearing up what seems to be a pretty big misconception that the screen uses e-ink for being visible in direct sunlight -- "it's standard LCD, just clever design," she explains. In one scene, she demonstrates that even in those very bright situations when the screen looks to go monochrome for visibility, you can still see a hint of color, with the full "Pleasantville" experience entering the more she moves the hardware into the shade. As for reports of the tech adding a $200 premium, she dismisses this as a misquote and infers that it was more of an example price for a laptop that'd be using the technology. There's a lot of fascinating tidbits here, including some talk on the nature of the display and laptop industries. As it stands, mass production begins this Fall, and even though you're seeing that Acer logo on the demo unit, Jepsen says it's just a prototype built into a laptop they bought at Radio Shack and that no manufacturing partners have been confirmed. Make sure the closest star isn't beaming down at your screen and head on after the break for the both videos. Read - Mary Lou Jepsen answers user comments Read - Pixel Qi vs Kindle vs Toshiba R600 vs regular LCD tablet
Crystals hold promise of affordable solar energy, may have been purchased on eBay
We have no real way of verifying whether or not these so-calls crystals were purchased alongside some bizarre time machine on eBay, but we'll take this guy's word for it and assume not for the time being. Reportedly, University of Queensland professor Max Lu has teamed up with researchers in order to grow "the world's first titanium oxide single crystals with large amounts of reactive surfaces." Put simply, these very crystals can "absorb sunlight and convert it into electricity." It's said that Lu has been working on the project for some 15 years, and even now, he doesn't expect the creation to be commercially viable for another decade. Aside from morphing into fairies and making dreams come true, the things could also be used to "purify air and water." Pair this up with an invisibility cloak and we'll really be in business.[Thanks, Brendan]
Spectrolab designs highly efficient solar cell
While we certainly applaud the designers at Spectrolab for developing a solar cell that's reportedly "twice as efficient as typical rooftop solar panels," we're stifling most of our excitement until it actually leaves the laboratory. Nevertheless, the Boeing subsidiary has apparently cranked out a cell that utilizes metamorphic materials and is "designed for photovoltaic systems that use lenses and mirrors to concentrate the sun's rays onto small, high-efficiency solar cells." The unique semiconductors used are said to resemble ones that adorn satellites and planetary landers, and can capture three layers of the solar spectrum versus the single layer that traditional solar panels collect. Unfortunately, it seems that the eventual goals for this thing are rather ho hum, as the crew only expects the cells to hit 45-percent efficiency within the next six or so years. C'mon folks, you've already got alternatives at 40.
Solar-powered beambots scurry about, shun batteries
While we wouldn't expect you to create your own city-powering solar tower in just 72 hours, the folks at MAKE have unveiled a sweet weekend project to get the frightened DIY novices in the crowd involved in robotics. The cleverly-dubbed beambot can be created from spare parts junking up your garage (or for the hardcore, your silverware drawer) as well as pre-packaged kits, and best of all, the energy required to bring these machines to life is available for free during standard daylight hours. The solar-powered bots don't do much besides walk around, explore the terrain, and become gradually less active as dawn approaches, but we're sure the more highly trained robotics engineers could bolt on a slingshot and quickly devise an underground beambot fighting championship. Regardless of your plans this weekend, be sure to visit the read link if you're dying for an excuse to cancel 'em.
DIY solar heater constructed with aluminum cans
A solar-powered air conditioner doesn't do one much good during a Vermont winter, but rather than cranking on the heater (or huddling under the heated Hello Kitty mat) just to heat things up in a relatively small garage, a clever DIYer set out to concoct his own solar heater using scrap parts and a bit of free time. The solar wall was primarily built with black-painted soda cans, a wooden wall, plexiglass cover, and an inlet and outlet to channel the air around. The homegrown "solar furnace" captured the sunlight beaming onto the south side of the building, and as cool air found its way into the toasty cans and rose through drilled out portals, it managed to heat up a respectable 15-degrees Fahrenheit before escaping into the garage. The creator did note that his next attempt would sport a relocated inlet and be much larger in size, but if you're interested in putting a few in-the-way parts to good use next winter, be sure to hit the read link for a pictorial how-to.[Via HackNMod, thanks Joe]
Wireless Outdoor Solar Speaker rocks out on beaches, picnics
It's not like we had anything personal against the 80s style boomboxes that lasted a good half hour or so on eight D-cell batteries, but tagging one along to a day at the beach wound up getting pretty costly in a hurry. Joining the hordes of other eco-friendly and multi-faceted camping / outdoor gear is the Wireless Outdoor Solar Speaker, which is quite likely to be overlooked as a simple thermos at first glance. Atop the canister sits a solar panel that soaks up energy and uses it to pump out tunes through its (understandably weak) five-watt speaker. Additionally, a complimentary wireless (albeit battery-powered) transceiver allows any music source with a 3.5-millimeter output to be beam music to the solar speaker from "up to 150 feet away." Reportedly, the sun-lovin' device will run UK-based chaps £99.95 ($199), but that's assuming you can actually catch it in stock.[Via PopGadget]
San Diegans convert carbon dioxide to fuel via solar energy
Being Earth Week and all, it's not too surprising to hear of San Diegans stretching their mental might and figuring out an effective way to convert carbon dioxide to fuel, but according to the University of California, San Diego, that's precisely what they've done. Clifford Kubiak and Aaron Sathrum have reportedly developed a prototype device "that can capture energy from the sun, convert it to electrical energy, and split carbon dioxide into carbon monoxide and oxygen." Interestingly, this concept produces more than just an alternate source of fuel, as CO2 splitting also creates a "useful industrial chemical" in CO, and furthermore, helps reduce a greenhouse gas. Currently, they are building the device using a gallium-phosphide semiconductor, and while the existing rendition still requires "additional energy" outside of sheer sunlight for the process to work, they're hoping that the American Chemical Society will warm up to the idea and give 'em a helping hand.[Via Physorg, thanks Richard N.]
