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We've improved Slashdot's video section; now you can view our video interviews, product close-ups and site visits with all the usual Slashdot options to comment, share, etc. No more walled garden! It's a work in progress -- we hope you'll check it out (Learn more about the recent updates).


Behind the Scenes At a Quantum Dot Factory 37

Posted by Soulskill
from the harvesting-the-dot-crop dept.
Tekla Perry writes: In a nondescript office complex in Milpitas, Calif., Nanosys is making enough quantum dots to populate 6 million 60-inch television screens annually. "The process goes on in what looks like a microbrewery. In about half a dozen large metal tanks ... Nanosys combines cadmium and selenium and adjusts the temperature, concentration, and catalysts added to force these precursors to combine into stable crystals of cadmium selenide. Then, by readjusting the conditions, the system stops the formation of crystals and triggers the beginning of crystal growth. A computer controls the process according to a programmed “recipe;” staff members monitor the growth of the crystals by shining light on them and measuring the wavelength of the fluorescence; the smallest crystals don’t fluoresce at all, then, as the crystals get larger, the wavelength changes. Nanosys stops the process when the fluoresced light hits the target wavelength, which varies depending on what particular display industry standard that the batch of film is designed to meet."

First Prototype of a Working Tricorder Unveiled At SXSW 61

Posted by samzenpus
from the scan-me dept.
the_newsbeagle writes The $10 million Tricorder X-prize is getting to the "put up or shut up" stage: The 10 finalists must turn in their working devices on June 1st for consumer testing. At SXSW last week, the finalist team Cloud DX showed off its prototype, which includes a wearable collar, a base station, a blood-testing stick, and a scanning wand. From the article: "The XPrize is partnering with the medical center at the University of California, San Diego on that consumer testing, since it requires recruiting more than 400 people with a variety of medical conditions. Grant Campany, director of the Tricorder XPrize, said he’s looking forward to getting those devices into real patients hands. 'This will be a practical demonstration of what the future of medicine will be like,' said Campany at that same SXSW talk, 'so we can scale it up after competition.'"

Scientists Insert a Synthetic Memory Into the Brain of a Sleeping Mouse 111

Posted by Soulskill
from the best-party-you-never-had dept.
the_newsbeagle writes: Scientists are learning how to insert fake memories into the brain via precise electrical stimulation (abstract). In the latest experiment, they gave sleeping mice a synthetic memory that linked a particular location in a test chamber to a pleasurable sensation. (At least they gave the mice a nice memory.)

The researchers first recorded the electrical signals from the mice's brains while the mice were awake and exploring the test chamber, until the researchers identified patterns of activity associated with a certain location. Then, when the mice slept, the researchers watched for those neural patterns to be replayed, indicating that the mice were consolidating the memory of that location. At that moment, they zapped a reward center of the mice's brains. When the mice awoke and went back into the chamber, they hung around that reward-associated location, presumably expecting a dose of feel-good.
The Internet

SpaceX Worried Fake Competitors Could Disrupt Its Space Internet Plan 115

Posted by Soulskill
from the give-us-all-the-spectrum dept.
Jason Koebler writes: The biggest impediment to SpaceX's plan to create a worldwide, satellite broadband network might not be the sheer technological difficulty of putting 4,000 satellites into space. Instead, outdated international and domestic regulations on satellite communications could stand in the way, according to a new Federal Communications Commission filing by the company. The company's attorneys wrote that the FCC might make it too easy for competitors to reserve communications bandwidth that they will never use. "Spectrum warehousing can be extremely detrimental and unprepared, highly speculative, or disingenuous applicants must be prevented from pursuing 'paper satellites' (or 'paper constellations'), which can unjustly obstruct and delay qualified applicants from deploying their systems."

Would You Need a License To Drive a Self-Driving Car? 362

Posted by samzenpus
from the easy-driver dept.
agent elevator writes Not as strange a question as it seems, writes Mark Harris at IEEE Spectrum : "Self-driving cars promise a future where you can watch television, sip cocktails, or snooze all the way home. But what happens when something goes wrong? Today's drivers have not been taught how to cope with runaway acceleration, unexpected braking, or a car that wants to steer into a wall." The California DMV is considering something that would be similar to requirements for robocar test-driver training." Hallie Siegel points out this article arguing that we need to be careful about how many rules we make for self-driving cars before they become common. Governments and lawmakers across the world are debating how to best regulate autonomous cars, both for testing, and for operation. Robocar expert Brad Templeton argues that that there is a danger that regulations might be drafted long before the shape of the first commercial deployments of the technology take place.

Facebook AI Director Discusses Deep Learning, Hype, and the Singularity 71

Posted by timothy
from the you-like-this dept.
An anonymous reader writes In a wide-ranging interview with IEEE Spectrum, Yann LeCun talks about his work at the Facebook AI Research group and the applications and limitations of deep learning and other AI techniques. He also talks about hype, 'cargo cult science', and what he dislikes about the Singularity movement. The discussion also includes brain-inspired processors, supervised vs. unsupervised learning, humanism, morality, and strange airplanes.

UK Scientists Claim 1Tbps Data Speed Via Experimental 5G Technology 71

Posted by timothy
from the hefty-overages dept.
Mark.JUK writes A team of Scientists working at the University of Surrey in England claim to have achieved, via an experimental lab test, performance of 1Tbps (Terabit per second) over their candidate for a future 5G Mobile Broadband technology. Sadly the specifics of the test are somewhat unclear, although it's claimed that the performance was delivered by using 100MHz of radio spectrum bandwidth over a distance of 100 metres. The team, which forms part of the UK Government's 5G Innovation Centre, is supported by most of the country's major mobile operators as well as BT, Samsung, Fujitsu, Huawei, the BBC and various other big names in telecoms, media and mobile infrastructure. Apparently the plan is to take the technology outside of the lab for testing between 2016 and 2017, which would be followed by a public demo in early 2018. In the meantime 5G solutions are still being developed, with most in the early experimental stages, by various different teams around the world. Few anticipate a commercial deployment happening before 2020 and we're still a long way from even defining the necessary standard.

Brain Imaging Shows Abnormal White Matter Areas In the Brains of Stutterers 50

Posted by Soulskill
from the bonus-smarts dept.
n01 writes: Stuttering — a speech disorder in which sounds, syllables or words are repeated or prolonged — affects more than 70 million people, or about 1% of the population, worldwide. Once treated as a psychological or emotional condition, stuttering can now be traced to brain neuroanatomy and physiology. Two new studies from UC Santa Barbara researchers provide insight into the treatment of the speech disorder as well as understanding its physiological basis. The first paper, published in the American Journal of Speech-Language Pathology, finds that the MPI stuttering treatment program, a new treatment developed at UCSB, was twice as effective as the standard best practices protocol. The second study, which appears in the Journal of Speech, Language, and Hearing Research, uses diffusion spectrum imaging (DSI) in an MRI scanner to identify abnormal areas of white matter in the brains of adult stutterers. According to co-author Janis Ingham, a professor emerita of speech and hearing sciences at UCSB and co-author of both papers, the two studies taken together demonstrate two critical points: A neuroanatomic abnormality exists in the brains of people who stutter, yet they can learn to speak fluently in spite of it.

Li-Fi-like System Pushes 100Gbps Within a Small Room 38

Posted by Soulskill
from the go-big-or-go-home dept.
An anonymous reader writes: Oxford University is [building] a system that takes light from the fiber, amplifies it, and beams it across a room to deliver data at more than 100 gigabits per second. ... The trick, of course, is getting the light beam exactly where it needs to go. An optical fiber makes for a target that's only 8 or 9 micrometers in diameter, after all. The team, which also included researchers from University College, London, accomplished this using so-called holographic beam steering at both the transmitter and receiver ends. These use an array of liquid crystals to create a programmable diffraction grating that reflects the light in the desired direction. ... With a 60-degree field of view, the team was able to transmit six different wavelengths, each at 37.4 Gb/s, for an aggregate bandwidth of 224 Gb/s (abstract). With a 36-degree field of view, they managed only three channels, for 112 Gb/s.

Cosmic Rays To Reveal the Melted Nuclear Fuel In Fukushima's Reactors 68

Posted by Soulskill
from the using-whatever-tools-are-available dept.
the_newsbeagle writes: Muons, produced when cosmic rays collide with molecules in the atmosphere, are streaming through your body as you read this. The particles pass through most matter unimpeded, however they can interact with heavy elements like uranium and plutonium. That's why engineers at Japan's Fukushima Daiichi power plant are using muon detectors to look for the melted nuclear fuel inside the plant's three melted-down reactors. By determining where muons are being diverted from their paths, the detectors create images of the blobs of fuel. That's necessary because nobody knows exactly where the radioactive gloop ended up during the meltdowns.

Autism: Are Social Skills Groups and Social Communication Therapy Worthwhile? 289

Posted by timothy
from the let's-all-count-and-sort-batteries dept.
vortex2.71 (802986) writes I imagine that enough of us on Slashdot are on the Autism Spectrum or were once diagnosed as having Aspergers that this might be the right venue for this question. My son is on the spectrum, but is in a mainstream classroom at a private school. We have spent thousands of dollars on a bunch of different social skills groups, speech communication therapy, occupational therapy, and physical therapy. We've found that the specific skills and intuition that the therapists possess is much more important than their credentials and are frequently disappointed by the overwhelming mediocrity of special education teachers, speech therapists, and OT/PT therapists. We are at the point where we wonder if our time is better spent with playdates with peers that are facilitated by us than continuing with the groups. I'm curious if there are adult Slashdoters who are on the spectrum who participated in these therapies as children who can weigh in on this? What was your experience with social skills groups and social communication therapy? Did they help?

Massive Layoff Underway At IBM 331

Posted by Soulskill
from the hope-you-land-on-your-feet dept.
Tekla Perry writes: Project Chrome, a massive layoff that IBM is pretending is not a massive layoff, is underway. At more than 100,000 people, it is projected to be the largest mass layoff by any U.S. corporation in at least 20 years. Alliance@IBM, the IBM employees' union, says it has so far collected reports of 5000 jobs eliminated, but those are just numbers of those getting official layoff notices. According to anecdotal reports, IBM appears to be abusing the performance appraisal system to cut additional employees without officially laying them off.
United Kingdom

BT Unveils 1000Mbps Capable Broadband Rollout For the United Kingdom 132

Posted by timothy
from the gee-that's-fast dept.
Mark.JUK writes The national telecoms operator for the United Kingdom, BT, has today announced that it will begin a country-wide deployment of the next generation hybrid-fibre (ITU G.9701) broadband technology from 2016/17, with most homes being told to expect speeds of up to 500Mbps (Megabits per second) and a premium service offering 1000Mbps will also be available.

At present BT already covers most of the UK with hybrid Fibre-to-the-Cabinet (FTTC) technology, which delivers download speeds of up to 80Mbps by running a fibre optic cable to a local street cabinet and then using VDSL2 over the remaining copper line from the cabinet to homes. follows a similar principal, but it brings the fibre optic cable even closer to homes (often by installing smaller remote nodes on telegraph poles) and uses more radio spectrum (17-106MHz) over a shorter remaining run of copper cable (ideally less than 250 metres). The reliance upon copper cable means that the real-world speeds for some, such as those living furthest away from the remote nodes, will probably struggle to match up to BT's claims. Nevertheless many telecoms operators see this as being a more cost effective approach to broadband than deploying a pure fibre optic / Fibre-to-the-Home (FTTH) network.
Wireless Networking

US Wireless Spectrum Auction Raises $44.9 Billion 91

Posted by Soulskill
from the all-about-the-wireless-benjamins dept.
An anonymous reader writes: The FCC's recent wireless spectrum auction closed on Thursday, and the agency has raked in far more money than anyone expected. Sales totaled $44.89 billion, demonstrating that demand for wireless spectrum is higher than ever. The winners have not yet been disclosed, but the FCC will soon make all bidding activity public. "The money will be used to fund FirstNet, the government agency tasked with creating the nation's first interoperable broadband network for first responders, to finance technological upgrades to our 911 emergency systems, and to contribute over $20 billion to deficit reduction. In addition, the auction brought 65 Megahertz of spectrum to market to fuel our nation's mobile broadband networks. The wireless industry estimates that for every 10 Megahertz of spectrum licensed for wireless broadband, 7,000 American jobs are created and U.S. gross domestic product increases by $1.7 billion."

Brain Implants Get Brainier 49

Posted by samzenpus
from the thinking-better dept.
the_newsbeagle writes "Did my head just beep?" wonders a woman who just received a brain implant to treat her intractable epilepsy. We're entering a cyborg age of medicine, with implanted stimulators that send pulses of electricity into the brain or nervous system to prevent seizures or block pain. The first generation of devices sent out pulses in a constant and invariable rhythm, but device-makers are now inventing smart stimulators that monitor the body for signs of trouble and fire when necessary.

TWEETHER Project Promises 10Gbps MmW 92-95GHz Based Wireless Broadband 54

Posted by timothy
from the fater-than-a-station-wagon-full-of-tapes dept.
Mark.JUK writes A new project called TWEETHER, which is funded by Europe's Horizon 2020 programme, has been set up at Lancaster University (England) with the goal of harnessing the millimetre wave (mmW) radio spectrum (specifically 92-95GHz) in order to deploy a new Point to Multipoint wireless broadband technology that could deliver peak capacity of up to 10Gbps (Gigabits per second). The technology will take three years to develop and is expected to help support future 5G based Mobile Broadband networks.

Researchers Use Siri To Steal Data From iPhones 55

Posted by samzenpus
from the protect-ya-neck dept.
wiredmikey writes "Using Apple's voice-activated Siri function, security researchers have managed to steal sensitive information from iOS smartphones in a stealthy manner. Luca Caviglione of the National Research Council of Italy and Wojciech Mazurczy of the Warsaw University of Technology warn that malicious actors could use Siri for stealthy data exfiltration by using a method that's based on steganography, the practice of hiding information. Dubbed "iStegSiri" by the researchers, the attack can be effective because it doesn't require the installation of additional software components and it doesn't need the device's alteration. On the other hand, it only works on jailbroken devices and attackers somehow need to be able to intercept the modified Siri traffic. The attack method involves controlling the "shape" of this traffic to embed sensitive data from the device. This covert channel could be used to send credit card numbers, Apple IDs, passwords, and other sensitive information from the phone to the criminal mastermind, researchers said in their paper.

Astronomers Record Mystery Radio Signals From 5.5 Billion Light Years Away 121

Posted by samzenpus
from the from-the-depths-of-space dept.
sarahnaomi writes For the first time ever, astronomers have captured an enormous radio wave burst in real time, bringing us one step closer to understanding their origins. These fleeting eruptions, called blitzars or FRBs (Fast Radio Bursts), are truly bizarre cosmic phenomena. In the span of a millisecond, they emit as much radiation as the Sun does over a million years. But unlike other super-luminous events that span multiple wavelengths—gamma ray bursts or supernovae, for example—blitzars emit all that energy in a tiny band of the radio light spectrum. Adding to the mystery is the rarity of blitzar sightings. Since these bursts were first discovered in 2007 with Australia's Parkes Telescope, ten have been identified, the latest of which was the first to be imaged in real time.

New Paper Claims Neutrino Is Likely a Faster-Than-Light Particle 142

Posted by timothy
from the don't-tell-the-trading-companies dept. writes reports that in a new paper accepted by the journal Astroparticle Physics, Robert Ehrlich, a recently retired physicist from George Mason University, claims that the neutrino is very likely a tachyon or faster-than-light particle. Ehrlich's new claim of faster-than-light neutrinos is based on a much more sensitive method than measuring their speed, namely by finding their mass. The result relies on tachyons having an imaginary mass, or a negative mass squared. Imaginary mass particles have the weird property that they speed up as they lose energy – the value of their imaginary mass being defined by the rate at which this occurs. According to Ehrlich, the magnitude of the neutrino's imaginary mass is 0.33 electronvolts, or 2/3 of a millionth that of an electron. He deduces this value by showing that six different observations from cosmic rays, cosmology, and particle physics all yield this same value within their margin of error. One check on Ehrlich's claim could come from the experiment known as KATRIN, which should start taking data in 2015. In this experiment the mass of the neutrino could be revealed by looking at the shape of the spectrum in the beta decay of tritium, the heaviest isotope of hydrogen.

But be careful. There have been many such claims, the last being in 2011 when the "OPERA" experiment measured the speed of neutrinos and claimed they travelled a tiny amount faster than light. When their speed was measured again the original result was found to be in error – the result of a loose cable no less. "Before you try designing a "tachyon telephone" to send messages back in time to your earlier self it might be prudent to see if Ehrlich's claim is corroborated by others."

NuSTAR Takes Beautiful X-ray Image of Sol 44

Posted by Soulskill
from the welcome-to-my-desktop dept.
New submitter swell points out a new image release from NASA, the first taken of the Sun by its Nuclear Spectroscopic Telescope Array (NuSTAR). It's the most sensitive shot ever taken in the high-energy X-ray range of the spectrum. Direct image link. While the sun is too bright for other telescopes such as NASA's Chandra X-ray Observatory, NuSTAR can safely look at it without the risk of damaging its detectors. The sun is not as bright in the higher-energy X-rays detected by NuSTAR, a factor that depends on the temperature of the sun's atmosphere. ... With NuSTAR's high-energy views, it has the potential to capture hypothesized nanoflares -- smaller versions of the sun's giant flares that erupt with charged particles and high-energy radiation. Nanoflares, should they exist, may explain why the sun's outer atmosphere, called the corona, is sizzling hot, a mystery called the "coronal heating problem." The corona is, on average, 1.8 million degrees Fahrenheit (1 million degrees Celsius), while the surface of the sun is relatively cooler at 10,800 Fahrenheit (6,000 degrees Celsius). It is like a flame coming out of an ice cube. Nanoflares, in combination with flares, may be sources of the intense heat.