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Scientists develop algorithm to solve Rubik's cubes of any size
A computer solving a Rubik's cube? P'shaw. Doing it in 10.69 seconds? Been there, record set. But to crack one of any size? Color us impressed. Erik Demaine of MIT claims to have done just that -- he and his team developed an algorithm that applies to cubes no matter how ambitious their dimensions. Pretty early on, he realized he needed to take a different angle than he would with a standard 3 x 3 x 3 puzzle, which other scientists have tackled by borrowing computers from Google to consider all 43 quintillion possible moves -- a strategy known simply as "brute force." As you can imagine, that's not exactly a viable solution when you're wrestling with an 11 x 11 x 11 cube. So Demaine and his fellow researchers settled on an approach that's actually a riff on one commonly used by Rubik's enthusiasts, who might attempt to move a square into its desired position while leaving the rest of the cube as unchanged as possible. That's a tedious way to go, of course, so instead the team grouped several cubies that all needed to go in the same direction, a tactic that reduced the number of moves by a factor of log n, with n representing the length of any of the cube's sides. Since moving individual cubies into an ideal spot requires a number of moves equal to n², the final algorithm is n²/log n. If we just lost you non-math majors with that formula, rest assured that the scientists expect folks won't be able to apply it directly, per se, though they do say it could help cube-solvers sharpen their strategy. Other that, all you overachievers out there, you're still on your own with that 20 x 20 x 20.
Deep Shot transfers open websites from desktop to mobile, sans wizardry
When we first read about Deep Shot, we were admittedly dumbfounded, but equally impressed. The "technology" allows you to "capture" the current state of a website on your desktop and transfer it to a mobile device -- taking a picture of a Google Map on your desktop with your smartphone camera will open the site in the same state on your phone, for example. Sounds like a pretty neat magic trick, huh? Well, it's not. In order to use Deep Shot, you need to install an app on your mobile, computer, and any other device you plan to use it with -- thus making it even less practical than Chrome to Phone. It currently works with Google Maps and Yelp, but could theoretically be used with any site that uses URIs, or those lengthy URLs that contain search details, such as the origin and destination addresses you sent to Google Maps. You could also "transfer" a site in its "current state" by emailing the URI, or by using an app to seamlessly share it over WiFi or Bluetooth with a "send to mobile" button -- which is likely what Deep Shot is doing here anyway, just with an extra step thrown into the mix. Care to visit a land where you can swim with the Loch Ness Monster and ride a pink unicorn? Head past the break for Deep Shot's coming out video, which curiously makes no mention of the required desktop software.
New 'semi-solid' battery could recharge EVs as fast as pumping gas
Researchers at MIT reckon they've struck oil. In fact, you're looking at what they call "Cambridge crude" -- a substance that could halve the weight and cost of EV batteries and make them quicker to charge too. The black goo is packed with a high concentration of energy in the form of particles suspended in a liquid electrolyte. When separated by a filter, these particles function as mobile electrodes that can be pumped into and around a system before the energy is released. So instead of waiting up to 20 hours to juice your Nissan Leaf, you could potentially just pump this pre-charged substance into it -- rather like dirty old gas. Until now, no such "semi-solid flow cell" has been able to hold useful quantities of energy, but this stuff literally oozes with it. Not only could it power EVs, it could even be used for large-scale electricity storage for utilities. The researchers insist this energy revolution is years off -- but when it comes, there will be blood.
Fanscooter is the world's slowest extreme sport (video)
What do you get when you get when you combine a fan and a scooter? If you said "Scooterfan," you should be ashamed. Really ashamed. The correct answer, clearly, is Fanscooter, the latest project from fighting robot builder / MIT engineering student Charles Guan, the guy who brought the world the similarly named and equally breezy Fankart last summer. What this new DIY vehicle lacks in the ominous ever-forward creep of its predecessor, it makes up in actual vehicular rideability, marking the return of Guan's HFF propeller -- the "h" stands for "holy" and the second "f" stands for "fan" -- which is positioned between two Razor Scooter decks. The whole things is topped off by a power source taped on in a manner that would surely put Homeland Security on high alert. Checkout of some slow-motion Jackass-style video of the project, after the break.
Amar Bose donates majority of Bose Corporation shares to MIT, says thanks for the education
If you haven't heard of Dr. Amar Bose directly, you've surely heard of his eponymous audio equipment company. Late last week, the 81-year old founder and chairman of Bose Corporation announced that he's donating the majority of shares in the privately held company to his alma mater, the Massachusetts Institute of Technology. A member of that college's graduating class of 1951 and its electrical engineering faculty all the way until 2001, Bose felt compelled to give something back and he's opted for the most grandiose of gestures. MIT won't be able to sell its shares in Bose Corp. nor have any say in the way it is run, but it'll receive dividends as and when they're paid out, which will then be reinvested in its research and education programs. In making this perpetual endowment public, Amar Bose took the time to credit Professors Y. W. Lee, Norbert Wiener and Jerome Wiesner as his mentors -- in the image above, you can see him pictured with Lee (left) and Wiener (right) back in 1955. Chalkboards, that's where it all began.
MIT's genetically modified viruses boost solar-cell efficiency by herding nanotubes
The wizards of MIT have done it again. Having checked artificial leaves and Operabots off the to-do list, they've moved on to improving the efficiency of solar cells. Their technique combines a genetically modified version of the M13 virus with carbon nanotubes, which have already been shown to increase efficiency. Unfortunately, some nanotubes enhance solar cell performance, while others inhibit it – and both types tend to clump together, negating their benefits. The modified M13 virus, however, can separate the two types as well as prevent clumping; we've seen similar use of the Tobacco mosaic virus to build better electrodes. Adding virus-built structures to dye-sensitized solar cells increased power conversion efficiency by almost one-third and, with only one additional step in the manufacturing process required, the new approach could be rapidly taken up by existing production facilities. MIT: proving once again that viruses are good for more than just smiting your enemies.
MIT test shows only 10 percent decrease in EV battery life after 1,500 rapid charges
Among the plethora of skeptical responses to our "car of the future" piece from earlier this week was people debating about what happens to all those batteries after a few-thousand charges. Well, now we can answer that -- for some batteries and some charging techniques, anyhow. MIT's Electric Vehicle Team took an A123 battery pack (the same type to be used in the Fisker Karma) and subjected it to 1,500 discharges and rapid re-charges (ala the CHAdeMO). The result was a 10% decrease in life over what equates to a couple years worth of refills, which sounds pretty good. That said, not all packs are created equal, your mileage may vary, and whatever other disclaimers you think might apply.
New MIT software learns an entire dead language in just a few hours
Whenever we boot up our time machines, cruise back to 1200 B.C., and try to pick up chicks at our favorite wine bar in Western Syria, our rudimentary knowledge of Ugaritic is usually more embarrassing than helpful. The good folks at the Massachusetts Institute of Technology have us stoked on some new software we hope to have in pocket form soon. It analyzes an unknown language by comparing letter and word patterns to another known language (in Ugaritic's case, its close cousin is Hebrew) and spits out a translation quickly, using precious little computing power. To give some perspective, it took archaeologists four years to do the same thing back in 1928. It's not quite Berlitz yet, but this proof of concept is kind of like the Michael Jordan of computational linguists -- it's probably the first time that machine translations of dead scripts has been proven effective. If we plug some hopeful numbers into our TI-83, we calculate that we'll be inserting our own genes into the ancient Syrian pool in a matter of months. Thanks, MIT! [Photo courtesy of Wikipedia Commons]
Roof tiles change color based on the temperature, your house's mood
Okay, sure, ideally your entire roof would be comprised of solar tiles that would meet your entire house's energy demands and would also water your lawn and clean your gutters while they were up there. But, despite pledges of "affordability" something tells us it'll be awhile before your roof starts juicing your gadgets. This solution from MIT looks a little more practical -- and affordable. They're simply tiles that change color based on the temperature, Hypercolor style. In the cold they turn jet black, absorbing the sun's warmth and channeling that into the house. In heat they turn white, reflecting that same light and cutting down on cooling bills. Simple and smart. The MIT team calls the tech Thermeleon, and while early prototypes do change color as designed, it remains to be seen how durable the tech will be, and a leaky roof is no good regardless of how efficient. Asphalt shingles reign supreme for yet another year.
MIT's Bokode tech calls out zebra stripes, QR codes for battle of barcode supremacy
Since barcodes are the sign of the devil (must be true, we read it on the interwebs) it's no surprise that everyone wants to replace 'em. QR codes have been quite popular, allowing people and companies to tag their stuff with colorful decals filled with bits and bytes, and of course RFID tags are still going strong, but a team of researchers at MIT has come up with something better: Bokode. It's effectively a tiny little retroreflective holograph that is just 3mm wide but, when a camera focused to infinity sweeps across it, the Bokodes become clear and appear much larger, captured in the video below. In this way they can contain "thousands of bits" of data and, interestingly, show positional information too, meaning the camera knows where in 3D space it is in relation to the tag. This, of course, has hundreds of potential applications ranging from grocery shopping to augmented reality, and should lead to new and exciting ways for scholars to interpret/misinterpret Revelations. [Via BBC]
New cuttlefish-inspired display tech can change color, eat your pet guppy
Cuttlefish are one of the most intelligent creatures in the sea, able to change their shape and color to escape predators -- but, they aren't smart enough to escape us, and they taste good, so they also go great with risotto. Scientists at MIT, however, decided not to eat their cuttlefish, instead using them to inspire the tech inside a new type of highly-efficient display. The screen is just one micron thick and contains a layer of poly-2 vinyl. Left alone it's clear but, when exposed to an electrical charge, its thickness and reflectivity can be controlled to create color. Just a few volts are required to form an image but, like e-ink, its design means backlighting is not an option. Viewing angles are also quite poor at this point, so this is one display tech that may take a long time to belly up at retail. Master of disguise video after the break.
Breakthrough in MIT's RealNose project could mean artificial noses for all - yay
The quest for the ultimate artificial nose is still underway, and thanks to a major breakthrough by the folks over at MIT, it might be sooner than later that we're all unwrapping stylish sniffers under the Christmas tree. More importantly, the fruits of MIT's RealNose project could replace drug and explosive-sniffing dogs as well as detect certain medical conditions via the odors emitted. Up to now, the tricky part of studying the sense of smell has been in isolating proteins (olfactory receptors) to get a good look at how they work. But in this latest development, researchers are now able to produce specific receptors using wheat germ. Engineered mammalian cells can be used to the same effect. What makes this so great is, while the human nose is relatively limited in what it can detect, this discovery could unlock the potential to detect an almost infinite range of odors. G.I. Joe with "action nose" here we come.[Via PhysOrg]
MIT's EMF detector bracelet takes all the fun out of radiation poisoning
We've seen our fair share of EMF detectors and other tin foil hat apparel, but no endeavor is complete without the MIT stamp of approval. Cati Vaucelle's EMF sensor bracelet is designed to pick up on any potentially harmful electromagnetic fields, allowing you to dance around the veritable minefield of computers and cell phones in your workplace, unscathed by the -- maybe, maybe not -- lethal effects of radiation being emitted. Nevermind about looking like a freak -- better safe than sorry, right? The bracelet, sensitive up to 14-inches, features an integrated LED that's illuminated whenever an EMF field over 50kHz is detected. If you'd like to see this prototype in action, a video will be presented today at Ubicomp in Seoul, or save your air miles and see it here after the break.[Via Make]
MIT students automate dorm room, add "party mode"
Even though they may have somewhat of a geeky reputation, MIT students party just as hard as the white hatters at your local state school, and probably graduate in larger percentages to boot. It should be no surprise, then, that a couple of dorm-dwelling party animals at the university decided to use their copious electronics skillz to convert their room into the ultimate cramped disco -- and because this is MIT we're talking about, everything goes live at the push of a single button. Using an X-10 control system, Zack Anderson and his roommate RJ Ryan hooked up strobe lights, black lights, a fog machine, laser light show, scrolling LED sign, disco ball, and an LCD projector to their computers so that all the effects would sync with whatever music was playing, and even retrofitted their window blind with a motor so it can drop down and act as a projection screen for some trippy visualization action. Calling their setup MIDAS (Multifunction In-Dorm Automation System), the pair also included a security alarm and camera for remotely monitoring their now-famous room, and situated small VFDs throughout the interior to deliver system status updates or other types of infoswag. Hey guys, if you don't land some hotshot jobs after college with your MIT degrees, we always have room for clever DIYers right here at Engadget.[Via MAKE: Blog]
