piezoelectric
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Conceptual Corky mouse gets charged through motion, doubles as a wine stopper
It's still in concept form at the moment, but America's own Adele Peters just might have a winner with Corky. This obviously cork-based mouse relies on "piezoelectric elements to generate energy every time you click or move it around on your desk," meaning that nary a battery would ever be used to power it. In case that's not sustainable enough for you, the whole thing is made from easily recyclable materials, so it shouldn't mar Ma Earth when it gets tossed at the end of its useful life. Too bad that design has been trumped forty times over by more ergonomic options, but hey, there's always v2.0.
Inhabitat's Week in Green: turbines, rubber circuits, and cola-powered cars
We're happy to introduce The Week in Green, a new item from our friends at Inhabitat. Each week they'll recap the week's most interesting green developments and clean tech news for us. Welcome! Sure, the iPad happened this week, but we also caught sight of several hot green gadgets and clean tech innovations this week that stand to shape the future of green consumer technology. First off, design star Philippe Starck brought haute design to clean tech with two novel designs for home wind turbines. Starck's high-profile products have made him a household name, so we're interested to see if his latest creations kick off a trend towards "designer" wind power. We were also impressed by researchers at Princeton University who recently found a way to integrate piezoelectric chips into flexible, durable rubber-based circuits. We've seen piezo power sources before, but applications for the new chips are sure to put bounce in your step: energy generating shoes, movement-powered microsurgical devices, and self-charging pacemakers are right around the corner. Interest in green transportation is building as Florida rides high on the government's recently announced grants for high speed rail -- the sunshine state is set to blaze a trail with $1.25 billion in funding. And for those with a soda habit, Takara Tomy's cola-powered RC car is one sweet ride. The biobattery-powered car can convert any sugary liquid to energy, so pour in some Jolt and you're good to go. Finally, love it or hate it -- the launch of Apple's iPad has dominated the newswires all week. While we appreciate the device's toxin-free, recyclable construction and impressive battery life, we have to ask: is it really green?
Researchers develop tiny, autonomous piezoelectric energy harvester
Folks have long been using piezoelectric devices to harvest energy in everything from dance floors to parking lots, but a group of European researchers have now shown off some novel uses for the technology at the recent International Electron Devices Meeting that could see even more of the self-sufficient devices put to use. Their big breakthrough is that they've managed to shrink a piezoelectric device down to "micromachine" size, which was apparently possible in part as a result of using aluminum nitride instead of lead zirconate titanate as the piezoelectric material, thereby making the devices easier to manufacture. Their first such device is a wireless temperature sensor, which is not only extremely tiny, but is able to function autonomously by harvesting energy from vibrations and transmit temperature information to a base station at 15 second intervals. Of course, the researchers say that is just the beginning, and they see similar devices eventually being used in everything from tire-pressure monitoring systems to predictive maintenance of any moving or rotating machine parts.
Motorola invests in Anywhere Multitouch technology
It's been awhile since we heard anything from Sensitive Objects, the French firm that developed Anywhere Multitouch, the platform that uses piezoelectric sensors to extend touch sensitivity beyond the display to the entire device. Well, we thought it was a pretty sweet idea -- and apparently Motorola did as well. According some spicy and exotic PR, Moto's investing some of its hard-earned cash in the company, which began as a project by the French Science National Research Center. As Reese Schroeder, managing director of Motorola Ventures, put it: "Natural user interface (NUI) and in particular interacting with a device through touch is an area of rapid development and great excitement. Sensitive Object provides an innovative and unique approach allowing new ways of interaction. We're most excited to be involved in their growth and success." One has to wonder what kind of new and innovative handset interfaces are coming around the bend -- and one has to wonder what kind of havoc it will cause when you put one of these "anywhere multitouch" phones in your pocket without locking it first. Luckily, the technology is said to be cheaper to implement than the other touchscreen solutions currently available -- so if these guys get their way, we might be accidentally calling our ex-girlfriends with the whole device very soon indeed. PR after the break.
Dragon Skin body armor gains piezoelectric sensors, keeps bullet-stopping abilities
This Dragon Skin armor has been knocking about since 2007, but now that piezoelectrics and intelligence have been thrown into the mix we couldn't stop ourselves from taking a peek at it. The armor's strength is derived from a reptilian arrangement of overlapping ceramic and titanium composite discs, which simultaneously block incoming rounds and dissipate the impact to a wider area. What's interesting about the new design is the two piezoelectric sensors attached to each end -- one of them transfers a low voltage of power through the armor in the form of vibration, which the other picks up, and the reported energy loss is interpreted as armor degradation. Gnarlier still is the ability of these sensors to generate electricity from bullet impacts, which can then themselves give you an indication of what sort of bullet hit you. Capable of being applied to soldiers and vehicles alike, this could make the real act of soldiering a whole lot more like a video game (minus the whole "infinite respawn" thing), with HUDs showing you how much "shield" you have left. You can see an old(ish) video of the original armor after the break.
'Secret Knock' Door Lock defends home from rhythmically-impaired perps (video)
The Arduino board has been the engine of many wild and wacky projects over the years, from bakery tweeting to various musical instruments. For its next trick, our man Steve Hoefer has taken his microcontroller and, along with a piezoelectric speaker, a gear reduction motor, and some PVC pipe, programmed it to listen for a preset sequence of knocks -- a secret knock, if you will -- and unlock the deadbolt upon hearing the right combination. Although this might not be the security system you want to put in place for your home, this definitely looks like a fun weekend project. Check out the read link for instructions and schematics, but not before you see the video of the thing in action. It's after the break.
Pavegen taps pedestrians for power in East London (video)
When we were kids, we assumed that in the future everything would be powered by tiny nuclear fusion reactors: automobiles, toothbrushes, time machines (apparently we read a lot of sci-fi from the 1950s). The truth, as usual, is more mundane than all that: some of the more promising advances we've seen in green energy has been kinetic, taking the movement of automobiles or the tides and converting it into electricity. Pavegen, for example, can be set in public walkways to generate as much as 2.1 watts of electricity per hour from the footsteps of grizzled pedestrians. Using marine grade stainless steel and recycled materials, just five of these bad boys distributed over a well-worn sidewalk should be able to generate enough energy to keep a bus stop going all night. If not put into nearby lighting, the units are equipped with lithium polymer batteries for storage. Currently being tested in East London, look for them throughout the UK in 2010. Video after the break. [Via Inhabitat]
Video: Emo Labs' invisible speakers visibly demonstrated
Emo Labs is out on a crusade to unify audio and video into one cohesive, delectable whole. If you'll recall, the company's Edge Motion invisible speaker tech relies on implanting a clear membrane atop display panels, which is then vibrated by piezoelectric actuators to generate stereo audio. We've grabbed a couple of vids of it in action to whet your appetite, and while there's still no word on when, plans are afoot to embed the technology into LCDs, laptops, mobiles and even handheld gaming devices. Dance past the break to hear, and maybe even see, for yourself. [Via eCoustics]
BlackBerry Storm 2 -- and its piezoelectric soul -- dissected at last
The leaked photo of the Storm 2's internal board got our juices flowing -- and our curiosity piqued -- but this latest set of photos really takes it up a notch. In addition to showing the rest of the device inside and out, we've got a handful of new pictures showing off that piezoelectronic technology doing its thing. Basically, as we understand it, those four "buttons" which are pictured are more like sensors than buttons. When the device is on, they communicate with the screen, and when it registers enough pressure, the result is the familiar "click" that Storm users know all too well. However, when the device is powered off (or in standby mode we assume), the screen stays put, as there isn't an actual mechanism to move the screen like there was in the original Storm. Of course, we won't know how to judge it until we can actually play with a real live demo unit in the flesh, but you can definitely say that RIM has us interested. At least they weren't lying about that whole 'SurePress is here to stay' thing.
BlackBerry Storm 2's voodoo-powered screen torn apart, raises more questions
If the Storm 2 seriously uses newfangled piezoelectrics to provide localized tactile response on its display -- something the original Storm lacked with just a single clicky button mounted underneath the screen's center point -- then how come we're coming to find out we've got four buttons mounted near the corners this time around? At this point, this picture posted of the Storm 2's sensitive innards probably raises more questions than it answers -- we're clearly looking at four buttons here, which as CrackBerry says would facilitate the "multi-press" necessary to engage key modifiers like Alt just as you would on a regular keyboard. The problem is that this doesn't even being to explain how or why the screen hardens up like a rock when the phone is off, because the four buttons plus traditional capacitive touch sensitivity would realistically get the job done without alien technology. We're looking forward to a thorough briefing from RIM once the phone gains some official recognition, but until then, let the theories fly. [Thanks, Doughy]
Supermarket generates piezoelectric power in parking lot
Remember that piezoelectric road prototype we saw late last year? Looks like someone (besides us) thought it was a good idea. According to The Daily Mail, a Sainsbury's supermarket in Gloucester, UK (you've never been there), has installed kinetic plates in the parking lot that use the weight of shopper's cars to pump a series of hydraulic pipes, which in turn drive a generator. The system is said to generate up to 30kw of energy an hour -- or enough to power the store's checkouts. And if that weren't enough, the store is also harvesting rainwater and heating it (during the summer, at least) with solar panels. The next in this store's "eco-friendly evolution?" Might we suggest Soylent in the deli? We hear the "green" stuff is particularly good.[Via Green Launches, Thanks Deepa]
Sensitive Object's Anywhere MultiTouch extends touch sensitivity to the whole device
Sensitive Object, a French startup best known for its louche, Gitanes-smoking engineers and its love of cocktail jazz, has just announced the development of Anywhere MultiTouch, a Windows 7-compliant platform that brings touch sensitivity to glass, aluminum, and plastic, through the use of piezoelectric sensors. This product is an extension of the company's ReverSys technology, which recognizes the precise location where an object is touched through soundwaves, with the new platform throwing in handwriting recognition and palm rejection for good measure. It looks like multitouch has finally been freed from the tyranny of the display, with developers now able to incorporate actions along the whole device. Excited? We bet you are. Full PR after the break.
Pilotfish's Ondo music editing mobile concept puts new twist on smartphones
It's been nearly three years since the Onyx tickled our imagination, but Pilotfish is looking to completely melt our brains with its latest concept. The Munich-based industrial design firm has just introduced its Ondo music editing mobile, which is half cellphone, half music mixer and thoroughly amazing. In theory, the phone would boast a small mixing panel, three removable recording sticks with internal memory and a bendable center to give music lovers the ability to insert pitch bends and relieve stress. Essentially, the trio of OLED-infused sticks serves two purposes: when installed, they're the main phone panel, and when removed, they can be clipped onto instruments for recording purposes. Afterwards, they can be swapped with other Ondo owners or edited on the fly right on the device itself. Needless to say, there's a better shot at you winning the lottery than seeing this thing hit mass production, but you can feel free to dream by checking the full release, Q&A and demonstration video just past the break.
Researchers develop braille for vibrating touchscreen devices
digg_url = 'http://www.engadget.com/2009/03/31/researchers-develop-braille-for-vibrating-touchscreen/'; In braille, a character is made up of six dots laid out on a two by three matrix -- not something that can really be conveyed using capacitive touchscreen technology. Working with a Nokia 770 Internet Tablet, researchers in Finland have developed a method for piezoelectric touchscreen devices that uses a single pulse of intense vibration to convey a raised dot, and a longer vibration made up of several weaker pulses to represent a missing dot -- spelling out letters that can be easily read by touch. It took a while for volunteers to get used to this method, but once they had they were able to read a character in as little as 1.25 seconds. Now that they have letters down, the team is moving on to words and sentences -- with an eye towards developing text-to-braille software sometime in the future.
Piezoelectric nanowires could lead to blood-powered iPods, cellphones
You know what'll be awesome? Actual end products resulting from this presumably nonstop research on piezoelectric nanowires. Yet again we're hearing of a new group of researchers that have figured out a way to harness electricity from life's simplest things: walking, a heart beating or even the flowing of blood. Put simply, the gurus have discovered how to use zinc oxide nanowires in order to generate an electric current when "subjected to mechanical stress." The difference here, however, is that these critters could actually be implanted under the skin, though the scientists have made quite clear that there isn't a timetable for commercial production. In other words: yawn.[Via textually, image courtesy of NSF]
Ben Heck fashions breath-controlled kick pedal for Guitar Hero
Ben Heck's at it again, and this time, he's cobbled together a breath-controlled kick pedal for use with Guitar Hero (or Rock Band, if that's your flavor) meant for people in wheelchairs, or who don't have use of their legs, but still want to get in on the rocking action. After tearing apart the kick pedal to expose its piezoelectric sensor, he mods it so that, rather than reacting to physical pressure, it'll react to air pressure. To get the job done, you'll need some PVC piping, a hot glue gun, and a drill. Hit the read link for full instructions and video of Ben himself testing out the device! [Via Hack a Day]
Jacketed hamsters demonstrate movement-powered nanogenerators
Imagine this -- one day, with enough steroids, your pet hamster actually could power your home by just running on its wheel. Georgia Tech researchers have discovered ways to "convert even irregular biomechanical energy into electricity," and it's demonstrating the finding by showing off jacket-wearing rodents that are game to run. According to the institution's Zhong Lin Wang, the minuscule nanogenerators "can convert any mechanical disturbance into electrical energy," which theoretically means that power can be driven by simple, irregular mechanical motion such as the vibration of vocal cords, flapping of a flag or the tapping of fingers. As with most of these university discoveries, there's no telling how soon this stuff will be pushed out to the commercial realm, but at least they've found something to keep the rats busy during the off hours. [Via news:lite, thanks Charles]
LightDrops umbrella classes up your act, generates electricity
The brainchild of designer Sang-Kyun Park, LightDrops is an umbrella that uses the piezoelectric effect of polyvinylidene fluoride (PVDF) to transform falling rain into electricity, which is then used to light LEDs installed on the umbrella's underside. The heavier the rain falls (and the harder it hits the umbrella), the brighter the light shines. Combine it with the solar tie, and who knows? This might someday become de rigueur for the stylish tech professional. Ella, ella, ella...[Via StyleCrave]
Prototype piezoelectric road could generate power by simply sitting there
By sitting there and getting ran over by motorcars, that is. In an effort to best other power-generating highway options that involve solar panels and enlarged blender arms, Britain's Environmental Transport Association is looking to test a prototype highway that's embedded with piezoelectric crystals. Essentially, the process would work much like the power-generating Tokyo station floors we saw earlier this week; each car that squishes a crystal would contribute a tiny bit of energy, and the collective effect could be enormous. In fact, it's estimated that a single kilometer of roadway could generate 400-kilowatts of energy, or enough to power around eight small cars. And we're no rocket scientists (nor physicists), but we're assuming these whiz kids already made sure these magic crystals weren't friction-generating, too. Right?
Piezoelectrics installed in Tokyo railway station floors generate power, wastes it
The East Japan Railway Company has been running tests on a "power-generating floor" since the beginning of January 2007, but they've just installed the system for public testing in several areas of the Tokyo station. Using piezoelectrics similar to that we've seen before in a UK discotheque, the Japanese company says the power-generating capacity of the flooring has increased ten-fold over its initial results, and they now expect to generate 1,400kW/sec per day. With that, they plan to power the display pictured above, which shows the power generatd by the floor. Sound a little redundant? Fear not: they plan on using the juice to operate automatic ticket gates in the future. [Via Inhabitat]
