By EditorDavid from Slashdot's better-than-Oregon-Trail department
Minecraft: Education Edition offers lesson plans like "City Planning for Population Growth" and "Effects of Deforestation," and a June preview attracted more than 25,000 students and teachers from 40 different countries. Slashdot reader mirandakatz writes: In the two years since Microsoft acquired Minecraft's parent company, it's discovered a brilliant new direction to take the game: it's turning it into a tool for education, creating both an innovative approach to classroom technology and an inspired strategy for competing with Google and Apple in the ed-tech market. 'I actually never believed there would be a game that would really cross over between the commercial entertainment market and education in a mainstream way,' says cultural anthropologist Mimi Ito—but Minecraft has managed to do just that.
In 2015 Chromebooks represented over 50% of PC sales for U.S. schools, while Windows PC accounted for just 22%, the article reports. But Minecraft is the second best-selling game of all time, behind only Tetris, and in the two years since Microsoft acquired it, "Sales have doubled to almost 107 million copies sold... If you were to count each copy sold as representing one person, the resulting population would be the world's 12th largest country (after Japan)." And as the article points out, "wherever Minecraft goes, Microsoft is there."Read Replies (0)
By EditorDavid from Slashdot's cornered-in-California department
Slashdot reader schwit1 quotes the L.A. Times:
An hours-long standoff in the darkness of the high desert came to a novel end when Los Angeles County sheriff's deputies used a robot to stealthily snatch a rifle from an attempted murder suspect, authorities said Thursday.
Officials said the use of the robot to disarm a violent suspect was unprecedented for the Sheriff's Department, and comes as law enforcement agencies increasingly rely on military-grade technology to reduce the risk of injury during confrontations with civilians. "The robot was a game changer here," said Capt. Jack Ewell, a tactical expert with the Sheriff's Department -- the largest sheriff's department in the nation. "We didn't have to risk a deputy's life to disarm a very violent man."
It was only later when the robot came back to also pull down a wire barricade that the 51-year-old suspect realized his gun was gone.Read Replies (0)
By EditorDavid from Slashdot's money-for-nothing department
"I was only a day or two behind FBI agents who were trying to put together a time line of what Elizabeh Holmes knew and when she knew it," writes Vanity Fair, in what Slashdot reader PvtVoid describes as "a compelling story of hubris, glamour and secrecy about the unicorn Silicon Valley company that turned out to be founded on bullshit." Another anonymous Slashdot reader writes:
Holmes raised $700 million "on the condition that she would not divulge to investors how her technology actually worked," according to an article detailing how Silicon Valley can "replicate one big confidence game in which entrepreneurs, venture capitalists, and the tech media pretend to vet one another while, in reality, functioning as cogs in a machine that is designed to not question anything -- and buoy one another all along the way... In the end, it isn't in anyone's interest to call bullshit."
Theranos employed "hundreds of marketers, salespeople, communications specialists, and even the Oscar-winning filmmaker Errol Morris," as well as a chief scientist who eventually became suicidal. But then the Centers for Medicare and Medicaid Services "discovered that some of the tests Theranos was performing were so inaccurate that they could leave patients at risk of internal bleeding, or of stroke among those prone to blood clots." A reporter at the Wall Street Journal says "It's O.K. if you've got a smartphone app or a social network, and you go live with it before it's ready; people aren't going to die. But with medicine, it's different."
He became suspicious after reading the answer that the company's CEO, a Stanford dropout, supplied for a question about their technology. "A chemistry is performed so that a chemical reaction occurs and generates a signal from the chemical interaction with the sample, which is translated into a result, which is then reviewed by certified laboratory personnel."Read Replies (0)
By EditorDavid from Slashdot's defending-your-life department
Slashdot reader marmot7 isn't impressed by "the latest app that solves some made up problem. I'm impressed by apps that solve real problems..."
I don't feel that developers, sys admins, finance people, even policy wonks focus on the problems that we need to solve to have a healthy functioning society. It seems like it's mostly about short-term gain and not much about making the world better. That may be just the way the market works.
Is it that there's no profit to be made in solving the most important problems? I'm puzzled by that as I would think that a good solution to an important problem could find some funding from somewhere but maybe government, for example, won't take investment risks in that way?
Is there a systematic bias that channels technology workers into more profitable careers? (Or stunning counter-examples that show technology workers are making the world a better place?) Leave your answers in the comments. Why aren't geeks doing more to improve the world?Read Replies (0)
By EditorDavid from Slashdot's armageddon-for-ink department
An anonymous reader quotes some harsh allegations from Myce.com:
Thousands of HP printers around the world started to show error messages on the same day, the 13th of September... HP printers with non-HP cartridges started to show the error message, "One or more cartridges appear to be damaged. Remove them and replace them with new cartridges"... When [Dutch online retailer 123ink] emailed their customers asking them if they wanted to check if their printer also had issues, they received replies from more than 1,000 customers confirming the issue...
Consumers who complained to HP were told the error was caused by using non-HP cartridges. A day later HP withdrew that statement and explained the issues were a side effect of a firmware update, [but] printers without any internet access started to reject non-HP cartridges. Therefore it's very unlikely that a firmware update caused the issues and the only other logical explanation is that HP programmed a date in its firmware on which non-HP cartridges would no longer be accepted.
"Printer worked fine for nine months," complains one of many angry users on HP's web site. "Then on 9/13 HP uploaded without my permission a firmware update that caused a message 'damaged cartridge' for all my cartridges and then it refused to print."Read Replies (0)
By EditorDavid from Slashdot's old-school-communications department
This week the U.S. House of Representatives unanimously passed "The Ham Radio Parity Act" -- a huge victory for grass-roots advocates of amateur radio.
Slashdot reader bobbied reports: This will allow for the reasonable accommodation of amateur radio antennas in many places where they are currently prohibited by homeowner associations or private land use restrictions... If this bill passes the Senate, we will be one step closer to allowing amateur radio operators, who provide emergency communications services, the right to erect reasonable antenna structures in places where they cannot do so now.
The national ham radio association is now urging supporters to contact their Senators through a special web page.
"This is not just a feel-good bill," said representative Joe Courtney, remembering how Hurricane Sandy brought down the power grid, and "we saw all the advanced communications we take for granted...completely fall by the wayside."Read Replies (0)
By EditorDavid from Slashdot's war-of-the-code-schools department
America is changing the way it teaches computer science. "There are now 31 states that allow CS to count towards high school graduation," according to an announcement this week by the White House, while a new Advance Placement course "will be offered in more than 2,000 U.S. classrooms this fall...the largest course launch in the history of the AP exam."
But what's the best way to teach coding? theodp reports: Tech-backed Code.org, one of the leaders of the new CSforAll Consortium that was announced at the White House on Wednesday, took to its blog Thursday to say "Thanks, Tim [Cook], for supporting the effort to give every student the opportunity to learn computer science," giving a shout out to Apple for providing "resources for teachers who want to put Swift Playgrounds in their classrooms. (A day earlier, the White House said Apple developed Swift Playgrounds "in support of the President's call to action" for CS for All).
Curiously, Code.org CEO Hadi Partovi argued Friday that "the Wolfram Language has serious shortcomings for broad educational use" in an EdSurge op-ed that was called a "response to a recent blog post by Stephen Wolfram" on Wolfram's ambitious plan to teach computational thinking in schools. Partovi's complaints? "It requires login for all but the simplest use cases, but doesn't provide any privacy safeguards for young children (required in the U.S. through legislation such as COPPA). Also, a serious user would need to pay for usage, making implementation inaccessible in most schools. Lastly, it's a bit difficult to use by students who struggle with English reading or writing, such as English language learners or early elementary school students."
The submission ultimately asks how should computer science be taught to teenagers. "Would you be inclined to embrace Wolfram's approach, Apple's Swift Playgrounds, Microsoft TEALS' Java-centric AP CS curriculum, or something else (e.g., R, Tableau, Excel+VBA)?"Read Replies (0)
By manishs from Slashdot's when-every-second-counts department
The space laboratory that China launched earlier this week has an atomic clock in it which is more accurate than the best timepiece operated by America's National Institute of Standards and Technology, according to Chinese engineers. The atomic called, dubbed CACS or Cold Atomic Clock in Space, will slow down by only one second in a billion years. In comparison, the NIST's F2 atomic clock, which serves as the United States' primary time and frequency standard, loses a second every 300 million years. From an RT report:"It is the world's first cold atomic clock to operate in space... it will have military and civilian applications," said Professor Xu Zhen from the Shanghai Institute of Optics and Fine Mechanics, who was involved in the CACS project. An atomic clock uses vibrations of atoms to measure time, which are very consistent as long as the atoms are held at constant temperature. In fact, since 1967 the definition of second has been "9,192,631,770 vibrations of a cesium-133 atom." In a cold atomic clock, the atoms are cooled down with a laser to decrease the effect of atom movement on the measurements. CACS goes even further and eliminates the pull of Earth's gravity by being based in orbit.Read Replies (0)
By EditorDavid from Slashdot's apps-with-a-mouse department
This week saw the first stable release of Android-x86 6.0 (marshmallow-x86) -- and a new version of Remix OS for PC, a PC-optimized version of Android. Slashdot reader prisoninmate quotes Softpedia: Android-x86 6.0 has been in the works since early this year, and it received a total of two RC (Release Candidate) builds during its entire development cycle, one in June and another in August. After joining the Remix OS team, Chih-Wei Huang now has all the reasons to update and improve its Android-x86 system for the latest Android releases. Therefore, as you might have guessed already, Android-x86 6.0 is the first stable version of the project to be based on Google's Linux kernel-based Android 6.0 Marshmallow mobile operating system, and includes the most recent AOSP (Android Open Source Project) security updates too. Under the hood, Android-x86 6.0 is using the long-term supported Linux 4.4.20 kernel with an updated graphics stack based on Mesa 12.0.2 3D Graphics Library, and offers support for Samsung's F2FS file system for SSD drives, better Wi-Fi support after resume and suspend, and initial HDMI audio support.Read Replies (0)
By EditorDavid from Slashdot's hardened-hardware department
"If the PC is tampered with, it will trigger an alert and erase the PC's encryption key, making the data totally inaccessible." Last month Design SHIFT began crowdfunding an elaborate "open source, physically secure personal computer" named ORWL (after George Orwell). "Having exceeded its $25,000 funding goal on Crowd Supply, the super-secure PC is in production," reports PC World, in an article shared by Slashdot reader ogcricket about the device which tries to anticipate every possible attack:
The encryption key to the drive is stored on a security microcontroller instead of the drive... The ORWL's makers say the wire mesh itself is constantly monitored... Any attempts to trick, bypass, or short the wire mesh will cause the encryption key to be deleted. The unit's security processor also monitors movement, and a user can select a setting that will wipe or lock down the PC's data if it is moved to another location... The RAM is soldered to the motherboard and can't be easily removed to be read elsewhere...
Your ORWL unlocks by using a secure NFC and Bluetooth LE keyfob. Pressing it against the top of the ORWL and entering a password authenticates the user. Once the user has been authenticated, Bluetooth LE is then ensures that the user is always nearby. Walk away, and the ORWL will lock.Read Replies (0)
By EditorDavid from Slashdot's how-to-brute-force-a-passcode department
"Remember the San Bernardino killer's iPhone, and how the FBI maintained that they couldn't get the encryption key without Apple providing them with a universal backdoor?" Slashdot reader LichtSpektren quotes Bruce Schneier:
Many of us computer-security experts said that they were wrong, and there were several possible techniques they could use. One of them was manually removing the flash chip from the phone, extracting the memory, and then running a brute-force attack without worrying about the phone deleting the key. The FBI said it was impossible. We all said they were wrong. Now, Sergei Skorobogatov has proved them wrong.
Sergei's new paper describes "a real world mirroring attack on the Apple iPhone 5c passcode retry counter under iOS 9."
The process does not require any expensive and sophisticated equipment. All needed parts are low cost and were obtained from local electronics distributors. By using the described and successful hardware mirroring process it was possible to bypass the limit on passcode retry attempts... Although the process can be improved, it is still a successful proof-of-concept project.Read Replies (0)
By BeauHD from Slashdot's tight-knit-industry department
An anonymous reader quotes a report from Los Angeles Times: 21st Century Fox on Friday filed a lawsuit against Netflix, accusing the streaming video giant of illegally recruiting two of its executives who were under contract. The suit, which was filed Friday in California Superior Court in Los Angeles, says Netflix engaged in a "brazen campaign to unlawfully target, recruit, and poach valuable Fox executives by illegally inducing them to break their employment contracts with Fox to work at Netflix." The lawsuit was sparked following the exits of two Fox executives: Marcos Waltenberg, who made the jump to Netflix earlier this year, previously worked as a marketing executive at Twentieth Century Fox Film; Tara Flynn, who made the move to Netflix just last week, had been the vice president of creative affairs at Fox 21 TV Studios. Fox alleges that Netflix pursued and hired the executives even though it knew they each had employment contracts that were still in effect, according to the complaint. The Century City-based studio is seeking an injunction to prevent Netflix from interfering with its employment contracts, as well as compensatory and punitive damages. A Netflix spokesperson said in a statement: "We intend to defend this lawsuit vigorously. We do not believe Fox's use of fixed term employment contracts in this manner are enforceable. We believe in employee mobility and will fight for the right to hire great colleagues no matter where they work."Read Replies (0)
By EditorDavid from Slashdot's plane-that-ate-the-Pentagon department
An anonymous Slashdot reader quotes the Washington Post:
Less than two months after declaring the controversial F-35 Joint Strike Fighter ready for combat, the Air Force on Friday announced that it was temporarily grounding 15 of the jets after it discovered that insulation was "peeling and crumbling" inside the fuel tanks. The setback is the latest for the $400 billion system, the most expensive in the history of the Pentagon. The problem comes as the program, which for years faced billions of dollars in cost overruns and significant schedule delays, had begun to make strides.
The insulation problem affects a total of 57 aircraft, the Air Force said, 42 of which are still in production... In a statement, Lockheed Martin said that "the issue is confined to one supplier source and one batch of parts." It emphasized that "this is not a technical or design issue; it is a supply chain manufacturing quality issue..." It is unclear how long the aircraft would be grounded, how long the problem would take to fix or what the larger affect on the program would be.
âoeWhile nearing completion, the F-35 is still in development, and challenges are to be expected," said an Air Force spokeswoman, adding "The F-35 program has a proven track record of solving issues as they arise, and we're confident we'll continue to do so."Read Replies (0)
Pluto Is Emitting X-Rays
Posted by News Fetcher on September 17 '16 at 02:11 AM
By BeauHD from Slashdot's new-discovery department
An anonymous reader quotes a report from Digital Trends: Scientists have noticed the tiny trans-Neptunium object emitting X-rays, which, if it is confirmed, is both a baffling and exciting discovery. Carey Lisse and Ralph McNutt from Johns Hopkins University Applied Physics Laboratory and a team of colleagues detected the X-rays by pointing the Chandra X-Ray Obervatory telescope in Pluto's direction four different times between February 2014 and August 2015. Seven photons of X-ray light were detected during these observations, confirming the team's hypothesis that the dwarf planet is detectable on the X-ray spectrum, potentially due to the presence of an atmosphere. Their findings have been published in the scientific journal Icarus. Why is this such a big deal? First of all, it would challenge what scientists have previously believed to be true of Pluto's nature. Until now, the popular description of the dwarf planet is as a tiny ball of frozen rock slowly meandering around the sun some 3.6-billion miles away. One of the possible explanations for why Pluto is emanating X-rays would be that the high energy particles emitted by the sun are stripping away and reacting with Pluto's atmosphere, producing the X-rays that are visible to Chandra. There are other potential explanations, such as haze particles in Pluto's atmosphere scattering the sun's X-rays are possible, though unlikely given the temperature of the X-rays observed. It is also possible that these X-rays are actually bright auroras produced by the atmosphere, but that would require Pluto to have a magnetic field -- something that would have been detected during New Horizon's flyby, yet no evidence of one was found.Read Replies (0)
By BeauHD from Slashdot's equal-rights department
An anonymous reader quotes a report from Washington Post: When the Arab Spring spread across the Middle East and North Africa, the internet was considered to have been one of the main facilitators of the revolutions, and while the Arab Spring has since become a source of frustration to many of those who fought for it, the assumption that the internet will facilitate future uprisings has rarely been questioned. A new study, however, now raises doubts about to what extent the internet plays a role in fostering democracy. In fact, it may make some people more equal than others. To voice discontent online, groups first need access to the internet, but too often, that is precisely what they lack, according to the report which was published by the academic journal Science. Those findings could force Western governments and nongovernmental organizations engaged in pro-democracy initiatives to rethink how they spread their message. Comparing the accessibility of internet in certain regions and taking into account the existence of minority communities, the authors found "a strong and persistent political bias in the allocation of internet coverage across ethnic groups worldwide [...] an effect that cannot be explained by economic or geographic factors." Around 500 minority groups worldwide were included in the study, with consistent findings of what the authors called "digital discrimination." The 10 worst-affected minorities mostly come from Russia and Malaysia, said researcher Nils B. Weidmann.Read Replies (0)
By BeauHD from Slashdot's better-late-than-never department
We've seen a number of entities announce plans to operate with 100% renewable energy over the years. Costa Rica, for example, has gone 76 straight days using 100% renewable electricity. General Motors is the latest company to release a roadmap to achieving 100% renewable energy. The catch? It won't be until 2050. CleanTechnica reports: American multinational General Motors, or GM, has committed to generating or sourcing 100% of the electricity for its operations across 59 countries from 100% renewable energy by 2050. GM made the announcement on Wednesday, revealing that it planned to generate or source all its electrical power needs for its 350 operations in 59 countries with 100% renewable energy such as wind, solar, and landfill gas, by 2050. In turn, the company has joined the 100% renewable energy campaign RE100, lending its considerable global business weight to an already important and successful campaign. "Establishing a 100% renewable energy goal helps us better serve society by reducing environmental impact," said Mary Barra, GM Chairman and CEO. "This pursuit of renewable energy benefits our customers and communities through cleaner air while strengthening our business through lower and more stable energy costs."Read Replies (0)