Scientists Twist Radio Beams To Send Data At 32 Gigabits Per Second

concertina226 writes Scientists from three international universities have succeeded in twisting radio beams in order to transfer data at the speed of 32 gigabits per second, which is 30 times faster than 4G LTE wireless technology in use today. The researchers, led by Alan Willner, an electrical engineering professor with the University of Southern California Viterbi School of Engineering, successfully demonstrated data transmission rates of 32 gigabits per second across 2.5m of free space in a basement laboratory. Read more of this story at Slashdot.

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Scientists Twist Radio Beams To Send Data At 32 Gigabits Per Second

The First Driverless Transit System in the U.S. Starts Rolling in 2017

Since 2011, Honolulu’s been busy building a $5.2 billion solution to help alleviate the mind-blowing traffic congestion that’s come to define life on Oahu’s South Shore. The Honolulu Rail Transit Project is a 20-mile, 21-station elevated train—and it will be the first completely driverless rail system in the U.S. Read more…

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The First Driverless Transit System in the U.S. Starts Rolling in 2017

Doctors Could 3D Print Their Own Tools For a Fraction of the Cost

The cost of the instruments needed to run a hospital or a lab is often exorbitant—but what if doctors and scientists could simply print their own tools from an open library of designs? That’s what a paper published today suggests. Read more…

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Doctors Could 3D Print Their Own Tools For a Fraction of the Cost

The Uber effect: how San Francisco’s cab use dropped 65-percent

Hailing a ride has never been easier — just take out your phone, tap on an app and wait for your internet-wrangled chauffeur to arrive. Companies like Uber and Lyft are reinventing the transportation industry, and traditional taxi services are feeling it. According to Kate Toran, interim Taxis and Accessible Services director for the San Francisco Municipal Transportation Agency, the average taxi is only making about 504 trips per month. Two years ago (specifically, in March of 2012) the average trip per taxi averaged at 1, 424. “There’s been a real reduction, ” she told the SFMTA board of directors earlier this week, “but obviously this doesn’t tell the whole story.” Without hard data from the transportation apps, the bigger picture is just unclear. Either way, the SFMTA is trying to find ways to retain and attract drivers to traditional taxi programs, and has moved to waive fees for dispatch renewal, color scheme renewal and taxi driver applications. The city is also considering allowing taxis to use wrap advertising on their cabs. At least competition is forcing the taxi industry to evolve — Troan’s report says that 80% of the San Francisco taxi fleet can be e-hailed with Flywheel , and another 60% of the fleet has adopted Curb . More drivers are accepting credit cards these days too, and taxi drivers still have exclusive rights to pick up passengers at the airport. Will the taxi companies be able to bounce back from the Uber effect? Maybe, but there’s only one San Francisco transportation firm that offers DeLorean rides . You can check out Toran’s full slide presentation at the source link below. [Image Credit: Wikimedia Commons] Filed under: Misc , Transportation Comments Via: The Atlantic Source: San Francisco Examiner

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The Uber effect: how San Francisco’s cab use dropped 65-percent

Amazon’s $200 Kindle Voyage is the Rolls-Royce of e-readers

Perhaps Amazon sold a lot of 3G Paperwhites without special offers. Or maybe Kobo’s Aura HD has quietly taken the world by storm and Jeff Bezos decided he needed an answer. Whatever the impetus, Amazon has decided there is room in the world for a $199 e-reader. The Kindle Voyage was built for people who “love to read.” Clearly the company thinks there is a place out there for a premium e-reader and, while we can’t vouch for the vibrancy of the high-end e-reader market, we can confirm that Amazon has put together a stunner of a device. The familiar Kindle software has even picked up some neat new software tricks that the Voyage taught its more budget-minded siblings. In many ways, the Voyage looks like your standard e-reader. It’s small, rectangular and there’s a crisp, beautiful E Ink screen up front. But once you start poking at it a bit, you realize this is a different beast from most of its predecessors. For one, like the Kobo Aura , the screen is flush with the body — there’s no raised bezel here. Secondly, the materials are decidedly more luxurious. The shell is made of a gorgeous matte magnesium that would feel at home on Lenovo’s top-of-the-line ThinkPads , while the front is a chemically hardened glass. That plate of glass is also micro-etched, which pretty much eliminates glare and lends a pleasing texture to the device. Amazon likes to say it feels like paper and, while that’s a bit of a stretch, the company isn’t completely off base. The small amount of resistance the etching adds delivers a tactility that is missing from a smooth, glossy panel. Underneath the glass is a next-generation Paperwhite display that packs 300 pixels per inch in a 6-inch panel. To say text and images were “crisp” would be an understatement. Simply put, it’s the best screen we’ve ever seen on an e-reader. Even on complex images, you’d be hard-pressed to spot an individual pixel. And the lighting continues to be in a class above most of its competitors — it’s smooth, even and almost blinding at its highest settings. Amazon even sneaked some sensors into the Voyage, which allow it to automatically adjust the front light based on your surroundings. The Voyage is also incredibly thin and light. At 7.6mm, it’s the thinnest Kindle yet and only 0.1mm thicker than an iPad Air. Obviously, we couldn’t sit and read for hours on end during our brief introduction to the device, but we can’t imagine you’d have any trouble holding it. And, even if your arm did get tired, there’s an Origami cover that can also act as a stand for your Kindle. The Voyage also marks the return of page-turn buttons… sort of. Underneath the bezel is a force sensor that can trigger “PagePress” — Amazon’s fancy way of describing turning the page without touching the screen. You can still swipe if you want, but as any of you who read while standing on a bus or train know, one-handed swiping can be difficult. A small, vibrating motor even provides some haptic feedback to let you know you’ve turned the page (in case you couldn’t figure it out by looking at the screen). The Kindle software has also picked up a few new tricks. Notably X-Ray has two new modes: an image browser for all your picture-heavy titles, and notable passages, which collects all the most important moments in a timeline view. While you could potentially use it like CliffsNotes, it seems more useful for quickly catching up if you’ve put a book down before finishing it. (I, for one, could really use this with my copy of The Wilderness Warrior, which has taken me almost three years to read.) There’s also WordWise, which puts definitions right on the page as you’re reading them. It’ll certainly be handy for students working to build their vocabulary, but it’s definitely too cluttered to use for everyday reading. All of the new software features will be making their way to the refreshed Kindle and Kindle Paperwhite as well. The Paperwhite is getting only the mildest of upgrades — going from 2GB to 4GB of storage. The truly budget $79 Kindle, on the other hand, is getting a relatively significant revamp. The new design, other than its bulky body, is almost indistinguishable from the Paperwhite. The navigation buttons are all gone and the interface has gone all-touch. You also get a much beefier processor and twice the storage as before. While you don’t normally think about the processor in your e-reader, as Amazon keeps packing in features, you’ll be thankful for the extra horsepower. Even with the new CPU, you’ll probably notice a stutter or two as you poke around in X-Ray or start turning on features like WordWise. Both the Voyage and the new Kindle will start shipping in October and are available for pre-order today. Now all Amazon has to do is convince someone that any e-reader, even one as lovely as the Voyage, is worth $200. Filed under: Amazon Comments

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Amazon’s $200 Kindle Voyage is the Rolls-Royce of e-readers

Artificial sweeteners may leave their users glucose intolerant

Flickr user Bukowsky18 People who are watching their weight will often opt for a diet soda, reasoning that the fewer calories, the better. But the availability of drinks and foods made with artificial sweeteners like saccharin, sucralose, and aspartame hasn’t seemed to help much with our booming obesity levels. Now, some researchers might have identified a reason for this: the sweeteners leave their users with elevated blood glucose levels. But they don’t seem to act directly on human metabolism. Instead, the effects come through alterations in the bacterial populations that live inside us. The paper that describes this work, which was performed by a large collaboration of researchers from Israel, is being released by Nature today. The researchers note that epidemiological studies about the effects of artificial sweeteners have produced mixed results; some show a benefit, while others indicate that they’re associated with weight gain and diabetes risk. Given that human populations haven’t given us a clear answer, the researchers turned to mice, where they could do a carefully controlled study. They started taking a group of genetically matched mice and spiking their drinking water with either sucrose or a commercial prep of an artificial sweetener (either saccharin, sucralose, or aspartame). After five weeks, they checked the blood glucose levels of these animals. Eleven weeks later, the groups that were given the artificial sweeteners all had elevated blood glucose levels compared to those that received sucrose. This is typically a sign of metabolic problems, most often caused by insulin losing its effectiveness. It can be a precursor to type 2 diabetes. Read 10 remaining paragraphs | Comments

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Artificial sweeteners may leave their users glucose intolerant

LA Schools Are Giving Back Grenade Launchers (But Keeping the Tank)

Los Angeles School Police Department announced this week that it would be sending some controversial surplus military equipment back to the federal government. Specifically, the school police will send back three grenade launchers. In related news, LA school police had grenade launchers . Read more…

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LA Schools Are Giving Back Grenade Launchers (But Keeping the Tank)

What you need to know about the future of paying for stuff

We’ve virtualized much of the rest of the modern life — why not payment? Plane tickets, banking, and many other aspects of our lives now live on our phones. Payments still exist in the world of paper and plastic. Google has Google Wallet , Visa has payWave, Mastercard has PayPass and American Express has ExpressPay. Apple just announced its own, with Apple Pay. If you’ve heard of any of these credit card services other than Apple’s recently announced system and maybe Google’s long-running program, we’re impressed. You’re in the minority; heck, one quarter of US citizens don’t even own a standard credit card, nonetheless a virtualized one. But virtual payments are more prevalent by the year, and Apple Pay is giving the concept a much-needed publicity boost. So, all that said, let’s talk about the future of payment. Don’t throw away your wallet just yet. WHAT IS IT? When it comes to virtualized payment systems, we’re not talking about paying with your credit card number online, or even services like PayPal. We’re talking about the act of paying at a physical store with virtual means: your phone, for instance, or some forms of credit card. Perhaps you’ve got a special key for use at the gas pump, where you wave it near a part of the pump and you’re good to go? Same concept, except this is all payment scenarios (at major retail chains, anyway). Google and Apple are using NFC — “near-field communication” — to make this work. That means exactly what it sounds like: you put your phone or card near a reader, and the reader accepts payment. We’ve got a video of Apple Pay in action right here! Pretty simple, right? What’s actually going on behind the scenes is a bit more complex, of course, but the implementation is meant to be painless. Ideally, even more painless than pulling out your credit card. And more secure, too. HOW DOES IT WORK? Here’s where things get technical, so bear with us for a moment. There are two main standards being used: NFC and ISO/IEC 14443. We already know that NFC stands for “near-field communication, ” but it’s worth also knowing that NFC devices produce a very weak radio frequency. This radio frequency is what allows them to communicate with payment systems, and it’s that same radio frequency that the ISO/IEC 14443 uses: 13.56 MHz. Technical junk aside, what matters here is that both systems play nice with each other. And that’s good, because a variety of credit card companies use the non-NFC system. Since those companies already outfitted retailers with their systems, no major change needs to be made for NFC-enabled phones to simply work as payment all over the USA. The list of vendors signed up for Apple Pay thus far is testament to that: Bloomingdale’s, Disney Store and Walt Disney World Resort, Duane Reade, Macy’s, McDonald’s, Sephora, Staples, Subway, Walgreens and Whole Foods Market. Google Wallet similarly offers a stand-in for credit and debit cards; enter debit/credit information to the app, then use the phone as your payment device at participating retailers. And all those retailers where Apple Pay works? Google Wallet nows works there too, thanks to the fact that there are established standards for how these payment systems work, and those standards aren’t governed by a single company. IS IT SECURE? As you likely expect, this is a sticky situation. Let’s break it down, piece-by-piece: Do Google and Apple keep my credit card information? The short answer is no. The longer answer still starts with no, but also points out that your debit/credit information is probably on file with both companies anyway through Google Play and iTunes. There’s no reason to believe that either company can’t be trusted with keeping that data safe, but Target customers and PlayStation Network users may feel differently. Could my phone be stolen and used as payment? Also no, at least not easily. In the case of Apple Pay, you need a fingerprint ID to use it. In the case of Google Pay, a PIN is required. Could my phone be stolen and debit/credit card info removed? Still no. Part of NFC’s standardization is an aspect called the “secure element.” This is the chip where personal information is stored, securely and encrypted. The question that really matters here is one of comparative security. Is virtualized payment more secure than traditional means? We’d argue yes, it is. Retailers in the US rarely check identification for debit/credit card use, and matching signatures is a remnant of the past. There are inconveniences that come with the new method — the inability to lend a family member a credit card, for instance — but those issues will assuredly work out in time. WHAT ARE THE ALTERNATIVES? Much of the world outside of the US has adopted a newer form of credit card which uses a built-in microchip and a PIN (sometimes called “Chip and PIN technology”). This “smartcard” has vastly reduced card fraud, but it never caught on in the US. It’s certainly an alternative, but not one that’s very effective if you don’t live in Europe. Smartphones, however, are worldwide. A similar concept exists in the US, though it uses technology similar to NFC. It’s this technology, in fact, that led the charge for virtualized payment in retail stores. It’s no surprise that Visa, Mastercard, American Express and a mess of major US banks are on board with the new NFC tech from the likes of Apple and Google — it’s an evolution of technology they’re already using. WANT EVEN MORE? If statistics are your kinda thing, a great resource for this piece was the CreditCards.com . Perhaps you think this whole virtualized payment thing is a solution to a non-existent problem? The New York Times ‘ Upshot section agrees. For the standards built into NFC tech, the Smart Card Alliance has you covered. Maybe you just want to watch Tim Cook excitedly introduce Apple Pay? CNET ‘s got that. [Image credit: Google (Google Wallet), AP Photo/Marcio Jose Sanchez (Apple Pay), Alamy (Chip and PIN card)] Filed under: Cellphones , Wearables , Internet , Software , Mobile , Apple , Google Comments

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What you need to know about the future of paying for stuff