By msmash from
Slashdot's how-about-that department:
An anonymous reader shares a report: The problem of energy storage has led to many creative solutions, like giant batteries. For a paper published today in the journal Chem, scientists trying to improve the solar cells themselves developed an integrated battery that works in three different ways. It can work like a normal solar cell by converting sunlight to electricity immediately, explains study author Song Jin, a chemist at the University of Wisconsin at Madison. It can store the solar energy, or it can simply be charged like a normal battery. It's a combination of two existing technologies: solar cells that harvest light, and a so-called flow battery. The most commonly used batteries, lithium-ion, store energy in solid materials, like various metals. Flow batteries, on the other hand, store energy in external liquid tanks. This means they are very easy to scale for large projects. Scaling up all the components of a lithium-ion battery might throw off the engineering, but for flow batteries, "you just make the tank bigger," says Timothy Cook, a University at Buffalo chemist and flow battery expert not involved in the study. "You really simplify how to make the battery grow in capacity," he adds. "We're not making flow batteries to power a cell phone, we're thinking about buildings or industrial sites.
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By msmash from
Slashdot's tough-luck department:
theodp writes: Last fall, Microsoft and the Green Bay Packers announced a $10 million partnership to build TitletownTech, "an innovation center focused on developing and advancing scalable, technology-enabled ventures," which aims to bring an economic boost to the area near Lambeau Field (Microsoft President Brad Smith hails from the region). Unfortunately for them, they failed to secure their venture's namesake domain name ahead of time. GeekWire reports on the fate of a Wisconsin family that was sitting on the coveted titletowntech.com domain name and offered to give it up in exchange for $750,000 cash, 8 lifetime Packers season tickets, 2 parking passes, and 8 Microsoft Surface Pro tablets (with lifetime MS-Office licenses). The family said the admittedly-ridiculous demand wasn't meant to be taken seriously but was intended to send a message after they received a suspicious $5,000 buyout offer from an anonymous "service" that the Packers engaged to try to recover the fumbled domain. Not amused, Green Bay Packers, Inc. flexed its legal muscle, filing a domain dispute complaint with the World Intellectual Property Organization (WIPO), which ordered the disputed domain name to be transferred to the team shortly after the USPTO issued a Notice of Allowance to the NFL team for a trademark on TitletownTech, leaving the Wisconsin family with zilch. And so the old titletowntech.com ("TitleTown Tech Solutions") was just a bad memory by the time Microsoft returned to Green Bay last week to give an update on the joint venture, including the news that Microsoft will play a key role in the leadership team at TitletownTech, which will also house its TEALS program employees. [...] And as for the domain name, the NFL franchise with more titles than any other team ultimately did what it has done for years -- win.
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By BeauHD from
Slashdot's blown-away department:
An anonymous reader quotes a report from Motherboard: Earlier this year, researchers at the University of Tokyo accidentally created the strongest controllable magnetic field in history and blew the doors of their lab in the process. As detailed in a paper recently published in the Review of Scientific Instruments, the researchers produced the magnetic field to test the material properties of a new generator system. They were expecting to reach peak magnetic field intensities of around 700 Teslas, but the machine instead produced a peak of 1,200 Teslas. (For the sake of comparison, a refrigerator magnet has about 0.01 Tesla)
In both the Japanese and Russian experiments, the magnetic fields were generated using a technique called electromagnetic flux-compression. This technique causes a brief spike in the strength of the magnetic field by rapidly "squeezing" it to a smaller size. [...] Instead of using TNT to generate their magnetic field, the Japanese researchers dumped a massive amount of energy -- 3.2 megajoules -- into the generator to cause a weak magnetic field produced by a small coil to rapidly compress at a speed of about 20,000 miles per hour. This involves feeding 4 million amps of current through the generator, which is several thousand times more than a lightning bolt. When this coil is compressed as small as it will go, it bounces back. This produces a powerful shockwave that destroyed the coil and much of the generator. To protect themselves from the shockwave, the Japanese researchers built an iron cage for the generator. However they only built it to withstand about 700 Teslas, so the shockwave from the 1,200 Teslas ended up blowing out the door to the enclosure. While this is the strongest magnetic filed ever generated in a controlled, indoor environment, the strongest magnetic field produced in history belongs to some Russian researchers who created a 2,800 Tesla magnetic field in 2001.
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By BeauHD from
Slashdot's first-of-its-kind department:
In what Delta is calling the first "biometric terminal" in the country, they will reportedly use facial recognition at check-in, security and boarding inside the international terminal at Atlanta's Hartsfield-Jackson airport. Engadget reports: Passengers that want to use facial recognition can approach a kiosk in the lobby and click "Look," or approach a camera at the ticket counter, TSA checkpoint or when boarding. Once a green check mark flashes on the screen, they can proceed. Delta -- which plans to introduce fingerprint scanning to fold, too -- says passengers can use this system instead of the passports to get through these checkpoints, but you'll still need your passport for use in other non-biometric-equipped airports (although maybe one day we'll do away with passports altogether). Privacy advocates are concerned about the security risks present in facial scans, especially as it's an opt-out process. Others, however, say it makes air travel a more streamlined process.
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By BeauHD from
Slashdot's always-connected department:
Iridium Communications is partnering with Amazon Web Services to develop a satellite-based network called CloudConnect for Internet of Things (IoT) applications. "We're really covering the whole planet [...] with terrestrial networks today it's still only 10 percent or 20 percent" of the Earth, Iridium CEO Matt Desch told CNBC. "Everybody today can connect pretty easily with very little effort. Now that Amazon has put our language into the cloud platform, they can extend their applications to the satellite realm." From the report: CloudConnect, which the company expects to launch in 2019, makes Iridium "the first, and only, satellite provider now connected to" Amazon Web Services, Desch said. The CloudConnect network will focus on "where cellular technologies aren't," Desch said, bringing the rest of the world within reach of AWS. The company is nearly finished putting its Iridium NEXT constellation of 75 satellites into orbit. SpaceX is launching the $3 billion satellite network for Iridium, with the eighth and final launch happening later this year.
Once online, Iridium NEXT will offer services such as higher broadband communications speeds and global airplane tracking. Iridium describes the IoT aspect of the network as a "catalyst for strong subscriber growth." Desch said the network hosts "about half a million" active devices, growing at a rate of about 20 percent per year for the last three years. With AWS onboard, Desch gave a very bullish estimates for his IoT services: "Easily this could expand to tens of millions of devices."
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By BeauHD from
Slashdot's proof-of-concept department:
An anonymous reader quotes a report from Gizmodo: A revved-up version of traditional CT scanning shows it's possible to acquire microscopic-scale images of ancient Egyptian mummies, revealing previously unseen features such as blood vessels and nerves. A new proof-of-concept study published this week in Radiology shows a modified version of CT scanning, called phase-contrast CT scanning, can be used to do microscopic-scale imaging of soft-tissue in human mummies. This imaging technique detects the absorption and phase shift (similar to how light changes direction when it passes through a lens) that happens when x-rays pass through a solid object. The resulting images feature a higher level of contrast than traditional x-ray images.
For the new study, Jenny Romell and her colleagues at the KTH Royal Institute of Technology in Sweden wanted to evaluate the effectiveness of using phase-contrast CT scanning on mummies. The researchers scanned a mummified human right hand from ancient Egypt. The hand was lent to them by the Museum of Mediterranean and Near Eastern Antiquities, and it dates back to around 400 BC. Rommel's team scanned the entire hand, followed by more detailed imaging of a finger tip. The system worked beautifully. The resolution got as good as an estimated 6 to 9 microns, which is slightly more than the width of a human blood cell. At such a small scale, the researchers could visualize the mummy's blood vessels, different layers of skin growth, adipose cells, blood vessels, and nerves. For archaeologists, this now introduces a new way of imaging ancient remains in an unobtrusive and highly detailed way.
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By BeauHD from
Slashdot's less-than-or-equal-to department:
During a talk at the Oculus Connect conference today, Oculus' CTO, John Carmack, compared the company's newly announced Oculus Quest headset to the Xbox 360 and PS3 in terms of power. Ars Technica reports: That doesn't mean the Quest, which is powered by a Qualcomm Snapdragon 835 SoC, can generate VR scenes comparable to those seen in Xbox 360 or PS3 games, though. As Carmack pointed out, most games of that generation targeted a 1280x720 resolution at 30 frames per second. On Quest, the display target involves two 1280x1280 images per frame at 72fps. That's 8.5 times as many pixels per second, with additional high-end anti-aliasing effects needed for VR as well. "It is not possible to take a game that was done at a high-quality level [on the Xbox 360 or PS3] and expect it to look good in VR," Carmack said. Expecting Rift-level performance from a self-contained mobile headset like the quest isn't realistic, Carmack said, partly for simple electrical reasons. While a high-end gaming PC often draw up to 500 watts of power, Carmack said the Quest only uses about 5W, a tidbit that should be of benefit to the Quest's still unconfirmed battery-life statistics.
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By msmash from
Slashdot's breaking-news department:
U.S. securities regulators have sued Elon Musk for allegedly making false statements related to his abandoned efforts to take Tesla Motors private. Bloomberg News broke the news Thursday, citing docket entry in Manhattan federal court. Last month, Musk had expressed his intentions to take Tesla private, and that he had secured the funding. Taking Tesla private, which would have helped the company avoid making short-term commitments and goals, would be the "best path forward," Musk had said at the time. Even as investors had shown agreement to Musk's move, a few days later, he announced that after further discussions, everyone believes that Tesla should remain public. Amid all of this, some argued that Musk made the "false" claim just to hurt short-sellers. From the lawsuit: This case involves a series of false and misleading statements made by Elon Musk, the Chief Executive Officer of Tesla, Inc. ("Tesla"), on August 7, 2018, regarding taking Tesla, a publicly traded company, private. Musk's statements, disseminated via Twitter, falsely indicated that, should he so choose, it was virtually certain that he could take Tesla private at a purchase price that reflected a substantial premium over Tesla stock's then-current share price, that funding for this multi-billion dollar transaction had been secured, and that the only contingency was a shareholder vote. In truth and in fact, Musk had not even discussed, much less confirmed, key deal terms, including price, with any potential funding source.
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Linux Now Dominates Azure
Posted by News Fetcher on September 27 '18 at 12:21 PM
By msmash from
Slashdot's gaining-traction department:
An anonymous reader shares a report: Three years ago, Mark Russinovich, CTO of Azure, Microsoft's cloud program, said, "One in four [Azure] instances are Linux." Then, in 2017, it was 40 percent Azure virtual machines (VM) were Linux. Today, Scott Guthrie, Microsoft's executive vice president of the cloud and enterprise group, said in an interview, "Slightly over half of Azure VMs are Linux. That's right. Microsoft's prize cloud, Linux, not Windows Server, is now the most popular operating system. Windows Server isn't going to be making a come back. Every month, Linux goes up," Guthrie said. And it's not just Azure users who are turning to Linux. "Native Azure services are often running on Linux," Guthrie added. "Microsoft is building more of these services. For example, Azure's Software Defined Network (SDN) is based on Linux." It's not just on Azure that Microsoft is embracing Linux. "Look at our simultaneous release of SQL Server on Linux. All of our projects now run on Linux," Guthrie said.
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By msmash from
Slashdot's stranger-things department:
When apps wants to access data from your smartphone's motion or light sensors, they often make that capability clear. That keeps a fitness app, say, from counting your steps without your knowledge. But a team of researchers has discovered that the rules don't apply to websites loaded in mobile browsers, which can often access an array of device sensors without any notifications or permissions whatsoever. From a report: That mobile browsers offer developers access to sensors isn't necessarily problematic on its own. It's what helps those services automatically adjust their layout, for example, when you switch your phone's orientation. And the World Wide Web Consortium standards body has codified how web applications can access sensor data. But the researchers -- Anupam Das of North Carolina State University, Gunes Acar of Princeton University, Nikita Borisov of the University of Illinois at Urbana-Champaign, and Amogh Pradeep of Northeastern University -- found that the standards allow for unfettered access to certain sensors. And sites are using it. The researchers found that of the top 100,000 sites -- as ranked by Amazon-owned analytics company Alexa -- 3,695 incorporate scripts that tap into one or more of these accessible mobile sensors. That includes plenty of big names, including Wayfair, Priceline.com, and Kayak.
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By msmash from
Slashdot's moving-forward department:
The moon has not superseded Mars as a human-spaceflight target, despite NASA's current focus on getting astronauts to Earth's nearest neighbor, agency officials stressed. From a report: The Red Planet remains the ultimate destination, and the moon will serve as a stepping stone along the way, Jim Bridenstine, NASA administrator, and Bill Gerstenmaier, associate administrator of NASA's Human Exploration and Operations Mission Directorate, said during congressional hearings Wednesday. "The moon is the proving ground, and Mars is the goal," Bridenstine said during testimony before the Subcommittee on Space, Science and Competitiveness, part of the U.S. Senate's Committee on Commerce, Science and Transportation. "The glory of the moon is that it's only a three-day journey home," Bridenstine added. "So, we can prove all of the technologies, we can reduce all of the risks, we can try all of the different maturations that are necessary to live and work on another world. And we can do it all at the moon, where, if there is a problem, if there is an emergency, we know that we can get people home." He cited NASA's Apollo 13 mission in 1970, which famously managed to make it safely back to Earth despite experiencing a serious problem on the way to the moon.
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By msmash from
Slashdot's security-woes department:
Election machines used in more than half of U.S. states carry a flaw disclosed more than a decade ago that makes them vulnerable to a cyberattack, WSJ reported, citing a report which will be made public Thursday on Capitol Hill. From the report: The issue was found in the widely used Model 650 high-speed ballot-counting machine made by Election Systems & Software LLC, the nation's leading manufacturer of election equipment. It is one of about seven security problems in several models of voting equipment described in the report, which is based on research conducted last month at the Def Con hacker conference. The flaw in the ES&S machine stood out because it was detailed in a security report commissioned by Ohio's secretary of state in 2007, said Harri Hursti, an election-security researcher who co-wrote both the Ohio and Def Con reports. "There has been more than plenty of time to fix it," he said. While the Model 650 is still being sold on the ES&S website, a company spokeswoman said it stopped manufacturing the systems in 2008. The machine doesn't have the advanced security features of more-modern systems, but ES&S believes "the security protections on the M650 are strong enough to make it extraordinarily difficult to hack in a real world environment," the spokeswoman said via email. The machines process paper ballots and can therefore be reliably audited, she said. The Def Con report is the latest warning from researchers, academics and government officials who say election systems in the U.S. are at risk to tampering.
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