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Science

More Quantum Strangeness: Particles Separated From Their Properties 139

Posted by Soulskill
from the superposition-of-cat-metaphors dept.
Dupple sends word of new quantum mechanical research in which a neutron is sent along a different path from one of its characteristics. First, a neutron beam is split into two parts in a neutron interferometer. Then the spins of the two beams are shifted into different directions: The upper neutron beam has a spin parallel to the neutrons’ trajectory, the spin of the lower beam points into the opposite direction. After the two beams have been recombined, only those neutrons are chosen which have a spin parallel to their direction of motion. All the others are just ignored. ... These neutrons, which are found to have a spin parallel to its direction of motion, must clearly have travelled along the upper path — only there do the neutrons have this spin state. This can be shown in the experiment. If the lower beam is sent through a filter which absorbs some of the neutrons, then the number of the neutrons with spin parallel to their trajectory stays the same. If the upper beam is sent through a filter, than the number of these neutrons is reduced.

Things get tricky when the system is used to measure where the neutron spin is located: the spin can be slightly changed using a magnetic field. When the two beams are recombined appropriately, they can amplify or cancel each other. This is exactly what can be seen in the measurement, if the magnetic field is applied at the lower beam – but that is the path which the neutrons considered in the experiment are actually never supposed to take. A magnetic field applied to the upper beam, on the other hand, does not have any effect.

+ - Observation of a quantum Cheshire Cat in a matter-wave interferometer experiment->

Submitted by Dupple
Dupple (1016592) writes "From its very beginning, quantum theory has been revealing extraordinary and counter-intuitive phenomena, such as wave-particle duality, Schrödinger cats and quantum non-locality. Another paradoxical phenomenon found within the framework of quantum mechanics is the ‘quantum Cheshire Cat’: if a quantum system is subject to a certain pre- and postselection, it can behave as if a particle and its property are spatially separated. It has been suggested to employ weak measurements in order to explore the Cheshire Cat’s nature. Here we report an experiment in which we send neutrons through a perfect silicon crystal interferometer and perform weak measurements to probe the location of the particle and its magnetic moment."
Link to Original Source

+ - Almost 1 in 10 Android Apps Are Now Malware

Submitted by Anonymous Coward
An anonymous reader writes "Cheetah Mobile Threat Research Labs analyzed trends in mobile viruses for Q1 and Q2 of 2014. Pulling 24.4 million sample files they found that 2.2 million files had viruses, roughly 9% of the total. Compared to previous years, this is a 153% increase from the number of infected files in 2013. Asia and select parts of Western Europe have undoubtedly had the highest rates of infection during the past six months. This is due in part to the prevalence of third party app stores in these regions, which have very lax checks to ensure that applications do not contain viruses."

+ - Google, CNN Leaders in "Advertising Pollution" 1

Submitted by theodp
theodp (442580) writes ""Everyone gets that advertising is what powers the internet, and that our favorite sites wouldn't exist without it," writes longtime ad guy Ken Segall in The Relentless (and annoying) Pursuit of Eyeballs. "Unfortunately, for some this is simply license to abuse. Let's call it what it is: advertising pollution." CNN's in-your-face, your-video-will-play-in-00:25-seconds approach, once unthinkable, has become the norm. "Google," Segall adds, "is a leader in advertising pollution, with YouTube being a showcase for intrusive advertising. Many YouTube videos start with a mandatory ad, others start with an ad that can be dismissed only after the first 10 seconds. Even more annoying are the ad overlays that actually appear on top of the video you're trying to watch. It won't go away until you click the X. If you want to see the entire video unobstructed, you must drag the playhead back to start over. Annoying. And disrespectful." Google proposed using cap and trade penalties to penalize traditional polluters — how about for those who pollute the Internet?"

+ - Enraged Verizon FiOS Customer Seemingly Demonstrates Netflix Throttling-> 1

Submitted by MojoKid
MojoKid (1002251) writes "The ongoing battle between Netflix and ISPs that can't seem to handle the streaming video service's traffic boiled over to an infuriating level for Colin Nederkoon, a startup CEO who resides in New York City. Rather than accept excuses and finger pointing from either side, Nederkoon did a little investigating into why he was receiving such slow Netflix streams on his Verizon FiOS connection, and what he discovered is that there appears to be a clear culprit. Nederkoon pays for Internet service that promises 75Mbps downstream and 35Mbps upstream through his FiOS connection. However, his Netflix video streams were limping along at just 375kbps (0.375mbps), equivalent to 0.5 percent of the speed he's paying for. On a hunch, he decided to connect to a VPN service, which in theory should actually make things slower since it's adding extra hops. Speeds didn't get slower, they got much faster. After connecting to VyprVPN, his Netflix connection suddenly jumped to 3000kbps, the fastest the streaming service allows and around 10 times faster than when connecting directly with Verizon. Verizon may have a different explanation as to why Nederkoon's Netflix streams suddenly sped up, but in the meantime, it would appear that throttling shenanigans are taking place. It seems that by using a VPN, Verizon simply doesn't know which packets to throttle, hence the gross disparity in speed."
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Businesses

How Tim Cook Is Filling Steve Jobs's Shoes 209

Posted by timothy
from the think-I'd-prefer-a-road-trip-with-jobs dept.
The New York Times, in an article about Apple CEO Tim Cook, focuses in large part on the ways in which Cook is not Jobs. He's less volatile, for one thing, whether you think that means he's less passionate or just more circumspect. A small slice: Lower-level employees praise Mr. Cook’s approachability and intellect. But some say he is less hands-on in developing products than his predecessor. They point to the development of the so-called iWatch — the “smartwatch” that Apple observers are eagerly awaiting as the next world-beating gadget. Mr. Cook is less involved in the minutiae of product engineering for the watch, and has instead delegated those duties to members of his executive cabinet, including Mr. Ive, according to people involved in the project, who spoke on condition of anonymity because they were not authorized to speak to press. Apple declined to comment on the watch project. ... Mr. Cook has also looked outside of Apple for experienced talent. He has hired executives from multiple industries, including Angela Ahrendts, the former head of Burberry, to oversee the physical and online stores, and Paul Deneve, the former Yves Saint Laurent chief executive, to take on special projects. He also hired Kevin Lynch, the former chief technology officer of Adobe, and Michael O’Reilly, former medical officer of the Masimo Corporation, which makes health monitoring devices. Not to mention the music men of Beats.

+ - Sacked Google Worker Awarded $150,000 for Unfair Dismissal

Submitted by theodp
theodp (442580) writes "When it comes to evaluating employee performance, perhaps Google isn't really that different from Microsoft after all. While Microsoft used stack ranking to kill employee morale, Google turned to bell curves that were "fine-tuned" by management to do their dirty HR work, according to Irish court documents. "Google, like other enlightened corporations," explains Valleywag, "makes its workers routinely rank each other and forces the scores to match a bell curve. The employees who are placed at the wrong end of the bell curve risk termination. That's stressful enough-now imagine your CEO personally meddling." The Irish Times reports former Google manager Rachel Berthold, who just won her suit against the company for unfair dismissal in 2011 and will receive around $150,000 in a court-mandated settlement, told her counsel that she was present when the ranking of a staff member was reduced electronically by Google Chairman Eric Schmidt. "It came from him," she said. "I saw it with my own eyes." She said Mr Schmidt could not have known anything about the employee. So, ask not for whom the fudged bell curve tolls, Googlers, it tolls for thee!"

Google News Sci Tech: MIT Researchers Endeavoring to Develop 3D Printed Self Assembling Robots - News ->

From feed by feedfeeder

News Tonight Africa

MIT Researchers Endeavoring to Develop 3D Printed Self Assembling Robots
News Tonight Africa
Researchers at IEEE International Conference on Robotics and Automation have come up with new idea of bakable robots. They shared their views to develop printable robotic components that automaticaly turns into prescribed three dimensional...
New printable robots to self-assemble when heatedBusiness Standard
3D printed robots can now self-assemble: reportDeccan Chronicle
How To Cook Your Own Homemade RobotForbes
The Utah People's Post
all 47 news articles

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+ - Comcast CEO Brian Roberts opens his mouth and inserts his foot

Submitted by lpress
lpress (707742) writes "At a recent conference, Comcast CEO Brian Roberts rationalized charging Netflix to deliver content by comparing Comcast to the Post Office, saying that Netflix pays to mail DVDs to its customers but now expects to be able to deliver the same content over the internet for free. He forgot to mention that the Post Office does not charge recipients for those DVDs. The underlying issue in this debate is who will invest in the Internet infrastructure that we badly need? Comcast has a disincentive to invest because, if things bog down, people will blame content providers like Netflix and the ISP will be able to charge the content provider for adequate service. If ISPs have insufficient incentive to invest in infrastructure, who will? Google? Telephone companies? Government (at all levels)? Premises owners?"
Technology

Report: Apple To Unveil "Smart Home" System 174

Posted by samzenpus
from the ask-the-house dept.
An anonymous reader writes "According to a report Apple will be unveiling a new smart home system at the upcoming Worldwide Developers Conference. The system will allow users to control security systems, appliances and lighting with their iPhones. A "select number" of device makers will be certified to offer products that work with Apple's upcoming system, according to the report, which didn't name any of the manufacturers."

Google News Sci Tech: Amazon Plans To Launch Smartphone In June: WSJ - NASDAQ->

From feed by feedfeeder

Firstpost

Amazon Plans To Launch Smartphone In June: WSJ
NASDAQ
(RTTNews.com) - Amazon.com Inc. ( AMZN ) is preparing to release a smartphone in the second half of this year, the Wall Street Journal reported, citing people briefed on the company's plans, as part of a broad push into hardware that would pit it against...
Report: Amazon smartphone to debut in second half of yearUSA TODAY
Amazon smartphone will be reportedly ready in time for US holiday seasonFirstpost
Amazon's Hard Sell: Gaining Developers for Its Coming SmartphonesRe/code
The Mac Observer-The FA Daily-PCWorld
all 111 news articles

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