Beta

Slashdot: News for Nerds

×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

AP Computer Science Test Takers Up 8,000; Pass Rate Down 6.8%

timothy posted about an hour ago | from the everything-that-rises dept.

Education 19

theodp (442580) writes "Code.org reports that preliminary data on students who took the Advanced Placement (AP) Computer Science Exam in 2014 show an increase of 8,276 students over 2013 and represent what the College Board called "the first real indication of progress in AP CS enrollment for women and underserved minorities in years." Girls made up 20% of the 39,393 total test takers, compared to 18.7% of the 31,117 test takers in 2013. Black or African American students saw their share increase by 0.19%, from 3.56% to 3.75% (low, but good enough to crush Twitter). Code.org credits the increased enrollment to its celebrity-studded CS promo film starring Bill Gates and Mark Zuckerberg ("I even made a personal bet (reflected in my contractual commitment to Code.org donors) that our video could help improve the seemingly immovable diversity numbers in computer science," Code.org founder Hadi Partovi notes). However, some of the increase is likely attributable to the other efforts of Code.org's donors. Microsoft ramped up its TEALS AP CS program in 2013-2014, and — more significantly — Google helped boost AP CS study not only through its CS4HS program, but also by funding the College Board's AP STEM Access program, which offered $5 million to schools and teachers to encourage minority and female students to enroll in AP STEM courses. This summer, explains the College Board, "All AP STEM teachers in the participating schools (not just the new AP STEM teachers), who increase diversity in their class, receive a [$100] DonorsChoose.org gift card for each student in the course who receives a 3, 4, or 5 on the AP Exam." The bad news for AP CS teachers anticipating Google "Excellence Funding" bounties (for increasing course enrollment and completion "by at least five underrepresented students") is that AP CS pass rates decreased to 60.8% in 2014 (from 67.6% in 2013), according to Total Registration. Using these figures and a back-of-the-envelope calculation, while enrollment saw a 26.6% increase over last year, the total number of students passing increased by 13.9%."

Nightfall: Can Kalgash Exist?

timothy posted 1 hour ago | from the burning-questions dept.

Books 18

First time accepted submitter jIyajbe (662197) writes Two researchers from the Indian Institute of Astrophysics investigate the imaginary world of Kalgash, a planetary system based on the novel 'Nightfall' (Asimov & Silverberg, 1991). From the arXiv paper: "The system consists of a planet, a moon and an astonishing six suns. The six stars cause the wider universe to be invisible to the inhabitants of the planet. The author explores the consequences of an eclipse and the resulting darkness which the Kalgash people experience for the first time. Our task is to verify if this system is feasible, from the duration of the eclipse, the 'invisibility' of the universe to the complex orbital dynamics." Their conclusion? "We have explored several aspects of Asimov's novel. We have found that the suns, especially Dovim are bright enough to blot out the stars. Kalgash 2 can eclipse Dovim for a period of 9 hours. We also tested one possible star configuration and after running some simulations, we found that the system is possible for short periods of time."

Greenpeace: Amazon Fire Burns More Coal and Gas Than It Should

timothy posted 2 hours ago | from the not-enough-greenwashing dept.

Cellphones 121

Jason Koebler (3528235) writes "The biggest thing that sets the Amazon Fire Phone apart from its Android and Apple competitors probably isn't the clean interface or the unlimited photo storage—it's the dirty power behind it. When Fire users upload their photos and data to Amazon's cloud, they'll be creating a lot more pollution than iPhone owners, Greenpeace says. Apple has made a commitment to running its iCloud on 100 percent clean energy. Amazon, meanwhile, operates the dirtiest servers of any major tech giant that operates its own servers—only 15 percent of its energy comes from clean sources, which is about the default national average." Greenpeace's jaundiced eye is on Amazon more generally; the company's new phone is just an example. Maybe Amazon or some other provider could take a page from some local utilities and let users signal their own preferences with a (surcharged) "clean energy" option.

Household Robot Jibo Nets Over $1 Million On Indiegogo

timothy posted 3 hours ago | from the one-meeeelion-dollars dept.

Communications 34

mikejuk (1801200) writes After seven days the Jibo project has over $1.1 million. What is surprising is that Jibo isn't a complex piece of hardware that will do the dishes and pick up clothes. It doesn't move around at all. It just sits and interacts with the family using a camera, microphones and a voice. It is a social robot, the speciality of the founder, MIT's, Cynthia Breazeal. The idea is that this robot will be your friend, take photos, remind you of appointments, order takeaway and tell the kids a story. If you watch the promo video then you can't help but think that this is all too polished and the real thing will fall flat on its face when delivered. If it does work then worry about the hundreds of kids needing psychiatric counselling — shades of Robbie in I, Robot. Even if it is hopelessly hyped — there is a development system and I want one. It is the early days of the home computer all over again.

Enraged Verizon FiOS Customer Seemingly Demonstrates Netflix Throttling

timothy posted 6 hours ago | from the choking-hard dept.

Media 214

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. 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.

Cable Companies: We're Afraid Netflix Will Demand Payment From ISPs

timothy posted yesterday | from the who-pays-whom-for-what dept.

Businesses 161

Dega704 (1454673) writes While the network neutrality debate has focused primarily on whether ISPs should be able to charge companies like Netflix for faster access to consumers, cable companies are now arguing that it's really Netflix who holds the market power to charge them. This argument popped up in comments submitted to the FCC by Time Warner Cable and industry groups that represent cable companies. (National Journal writer Brendan Sasso pointed this out.) The National Cable & Telecommunications Association (NCTA), which represents many companies including Comcast, Time Warner Cable, Cablevision, Cox, and Charter wrote to the FCC:

"Even if broadband providers had an incentive to degrade their customers' online experience in some circumstances, they have no practical ability to act on such an incentive. Today's Internet ecosystem is dominated by a number of "hyper-giants" with growing power over key aspects of the Internet experience—including Google in search, Netflix and Google (YouTube) in online video, Amazon and eBay in e-commerce, and Facebook in social media. If a broadband provider were to approach one of these hyper-giants and threaten to block or degrade access to its site if it refused to pay a significant fee, such a strategy almost certainly would be self-defeating, in light of the immediately hostile reaction of consumers to such conduct. Indeed, it is more likely that these large edge providers would seek to extract payment from ISPs for delivery of video over last-mile networks."
Related: an article at Gizmodo explains that it takes surprisingly little hardware to replicate (at least most of) Netflix's current online catalog in a local data center.

The Truth About Solar Storms

timothy posted yesterday | from the deepen-the-basement dept.

Communications 75

StartsWithABang (3485481) writes On Wednesday, The Washington Post ran a story about a very large solar flare two years ago that missed Earth, but not by too much. From a scientific point of view, what is it that happens when a solar flare interacts with Earth, and what are the potential dangers to both humans and humanities infrastructure? A very good overview, complete with what you can do — as both an individual and a power company — to minimize the risk and the damage when the big one comes. Unlike asteroids, these events happen every few centuries, and in our age of electronics, would now create a legitimate disaster.

The Army Is 3D Printing Warheads

Soulskill posted yesterday | from the do-not-try-this-at-your-local-makerspace dept.

The Military 136

Jason Koebler writes: In its latest bid to kill more people, more efficiently, and at less cost, the army is planning to print warhead components, according to the latest issue of Army Technology (PDF). "3D printing of warheads will allow us to have better design control and utilize geometries and patterns that previously could not be produced or manufactured," James Zunino, a researcher at the Armament Research, Engineering and Design Center said. "Warheads could be designed to meet specific mission requirements whether it is to improve safety to meet an Insensitive Munitions requirement, or it could have tailorable effects, better control, and be scalable to achieve desired lethality."

The NSA's New Partner In Spying: Saudi Arabia's Brutal State Police

Soulskill posted yesterday | from the with-friends-like-these dept.

Government 109

Advocatus Diaboli sends this news from The Intercept: The National Security Agency last year significantly expanded its cooperative relationship with the Saudi Ministry of Interior, one of the world's most repressive and abusive government agencies. An April 2013 top secret memo provided by NSA whistleblower Edward Snowden details the agency's plans "to provide direct analytic and technical support" to the Saudis on "internal security" matters. The Saudi Ministry of Interior—referred to in the document as MOI— has been condemned for years as one of the most brutal human rights violators in the world. In 2013, the U.S. State Department reported that "Ministry of Interior officials sometimes subjected prisoners and detainees to torture and other physical abuse," specifically mentioning a 2011 episode in which MOI agents allegedly "poured an antiseptic cleaning liquid down [the] throat" of one human rights activist. The report also notes the MOI's use of invasive surveillance targeted at political and religious dissidents.

Russia Posts $110,000 Bounty For Cracking Tor's Privacy

Soulskill posted yesterday | from the what-happens-in-siberia-stays-in-siberia dept.

Encryption 90

hypnosec writes: The government of Russia has announced a ~$110,000 bounty to anyone who develops technology to identify users of Tor, an anonymising network capable of encrypting user data and hiding the identity of its users. The public description (in Russian) of the project has been removed now and it only reads "cipher 'TOR' (Navy)." The ministry said it is looking for experts and researchers to "study the possibility of obtaining technical information about users and users' equipment on the Tor anonymous network."

Switching From Microsoft Office To LibreOffice Saves Toulouse 1 Million Euros

Soulskill posted yesterday | from the all-about-the-napoleans dept.

EU 237

jrepin sends this EU report: The French city of Toulouse saved 1 million euro by migrating all its desktops from Microsoft Office to LibreOffice. This project was rooted in a global digital policy which positions free software as a driver of local economic development and employment. Former IT policy-maker Erwane Monthubert said, "Software licenses for productivity suites cost Toulouse 1.8 million euro every three years. Migration cost us about 800,000 euro, due partly to some developments. One million euro has actually been saved in the first three years. It is a compelling proof in the actual context of local public finance. ... France has a high value in free software at the international level. Every decision-maker should know this."

SLS Project Coming Up $400 Million Short

Soulskill posted yesterday | from the opportunity-for-real-life-iron-man dept.

NASA 128

schwit1 writes: A GAO report finds that the Space Launch System is over budget and NASA will need an additional $400 million to complete its first orbital launch in 2017. From the article: "NASA isn't meeting its own requirements for matching cost and schedule resources with the congressional requirement to launch the first SLS in December 2017. NASA usually uses a calculation it calls the 'joint cost and schedule confidence level' to decide the odds a program will come in on time and on budget. 'NASA policy usually requires a 70 percent confidence level for a program to proceed with final design and fabrication,' the GAO report says, and the SLS is not at that level. The report adds that government programs that can't match requirements to resources 'are at increased risk of cost and schedule growth.'

In other words, the GAO says SLS is at risk of costing more than the current estimate of $12 billion to reach the first launch or taking longer to get there. Similar cost and schedule problems – although of a larger magnitude – led President Obama to cancel SLS's predecessor rocket system called Constellation shortly after taking office." The current $12 billion estimate is for the program's cost to achieve one unmanned launch. That's four times what it is costing NASA to get SpaceX, Boeing, and Sierra Nevada to build their three spaceships, all scheduled for their first manned launches before 2017.

eSports Starting To Go Mainstream

Soulskill posted yesterday | from the big-enough-for-annoying-ads dept.

Businesses 110

An anonymous reader writes: eSports have never been more popular, and many large companies are starting to view them in the same light as traditional sports. The amount of money being thrown around is beginning to rival the money exchanged over sports teams. A recent Dota 2 tournament handed out over $10 million in prizes, and Google's $1 billion purchase of game-streaming site Twitch.tv has now been confirmed. But it doesn't end there — companies like Coca-cola, Intel, Nissan, and major movie studios are looking at the audiences being drawn by eSports and realizing the advertising potential. "Last fall, Riot Games sold out the Staples Center for its League of Legends Championship Series Finals. While 12,000 people watched live in the home of the Lakers and Kings, over 32 million tuned in to the livestream." George Woo, head of a global eSports tournament, said, "Attendance to Intel Extreme Masters events has grown 10X with us filling up sport stadiums, where we have visitors lining up to get a seat to watch the competition. Online it has grown 100X, where we now get more viewers watching livestreams for a single event than we'd have tune in for an entire season in the past."

Wikipedia Blocks 'Disruptive' Edits From US Congress

Soulskill posted yesterday | from the history-no-longer-written-by-the-victors dept.

Wikipedia 158

alphatel writes: Wikipedia has blocked anonymous edits from a congressional IP address for 10 days because of "disruptive" behavior. These otherwise anonymous edits were brought to light recently by @Congressedits, a bot that automatically tweets Wikipedia changes that come from Congressional IP addresses. The biography of former U.S. defense secretary Donald Rumsfeld was edited to say that he was an "alien lizard who eats Mexican babies." Mediaite's Wikipedia page was modified to label the site as a "sexist transphobic" publication.

Earth In the Midst of Sixth Mass Extinction: the 'Anthropocene Defaunation'

Soulskill posted yesterday | from the i-blame-the-schools dept.

Earth 269

mspohr writes: A special issue of Science magazine devoted to 'Vanishing Fauna' publishes a series of articles about the man-caused extinction of species and the implications for ecosystems and the climate. Quoting: "During the Pleistocene epoch, only tens of thousands of years ago, our planet supported large, spectacular animals. Mammoths, terror birds, giant tortoises, and saber-toothed cats, as well as many less familiar species such as giant ground sloths (some of which reached 7 meters in height) and glyptodonts (which resembled car-sized armadillos), roamed freely. Since then, however, the number and diversity of animal species on Earth have consistently and steadily declined. Today we are left with a relatively depauperate fauna, and we continue to lose animal species to extinction rapidly. Although some debate persists, most of the evidence suggests that humans were responsible for extinction of this Pleistocene fauna, and we continue to drive animal extinctions today through the destruction of wild lands, consumption of animals as a resource or a luxury, and persecution of species we see as threats or competitors." Unfortunately, most of the detail is behind a paywall, but the summary should be enough to get the point across.

Amazon's Ambitious Bets Pile Up, and Its Losses Swell

Soulskill posted yesterday | from the i-will-gladly-pay-you-tuesday-for-a-hamburger-with-2-day-shipping dept.

The Almighty Buck 167

New submitter shirleymarone sends word that investors are becoming impatient with Amazon's willingness to absorb short-term losses for theoretical long-term gains. The company brought in over $19 billion in revenue last quarter, but reported a net loss of $126 million. The company warned of even greater losses this quarter. Amazon officials exude a serene if vague confidence. "We're not trying to optimize for short-term profits," Thomas J. Szkutak, the chief financial officer, said in a conference call. "We're investing on behalf of customers and share owners," he said. "We're fortunate to have these opportunities." But even the analysts, who are generally enthusiastic about the company and its global ambitions, are asking slightly more pointed questions these days. For all these investments, one analyst asked Mr. Szkutak, why are sales not increasing even faster? His answer: Just wait. ... Amazon, which is based in Seattle, long ago transcended its roots as a simple retailer. In recent weeks it introduced Zocalo, a document storage and sharing service that grew out of its fast-growing web services division. It began a program to allow readers to consume as many e-books as they want for a set monthly fee. And it is starting to ship its long-awaited entry in the smartphone sweepstakes. The phone, the result of years of development by thousands of Amazon programmers and designers, is meeting some resistance from reviewers.

How a Solar Storm Two Years Ago Nearly Caused a Catastrophe On Earth

Soulskill posted yesterday | from the call-ahead-before-dropping-by dept.

Space 202

schwit1 writes: On July 23, 2012, the sun unleashed two massive clouds of plasma that barely missed a catastrophic encounter with the Earth's atmosphere. These plasma clouds, known as coronal mass ejections (CMEs), comprised a solar storm thought to be the most powerful in at least 150 years. "If it had hit, we would still be picking up the pieces," physicist Daniel Baker of the University of Colorado tells NASA. Fortunately, the blast site of the CMEs was not directed at Earth. Had this event occurred a week earlier when the point of eruption was Earth-facing, a potentially disastrous outcome would have unfolded.

"Analysts believe that a direct hit could cause widespread power blackouts, disabling everything that plugs into a wall socket. Most people wouldn't even be able to flush their toilet because urban water supplies largely rely on electric pumps. ... According to a study by the National Academy of Sciences, the total economic impact could exceed $2 trillion, or 20 times greater than the costs of a Hurricane Katrina. Multi-ton transformers damaged by such a storm might take years to repair." Steve Tracton put it this way in his frightening overview of the risks of a severe solar storm: "The consequences could be devastating for commerce, transportation, agriculture and food stocks, fuel and water supplies, human health and medical facilities, national security, and daily life in general."

Two Cities Ask the FCC To Preempt State Laws Banning Municipal Fiber Internet

samzenpus posted yesterday | from the fighting-the-man dept.

The Internet 186

Jason Koebler writes Two cities—Chattanooga, Tennessee, and Wilson, North Carolina—have officially asked the federal government to help them bypass state laws banning them from expanding their community owned, gigabit fiber internet connections. In states throughout the country, major cable and telecom companies have battled attempts to create community broadband networks, which they claim put them at a competitive disadvantage. The FCC will decide if its able to circumvent state laws that have been put in place restricting the practice.

One Trillion Bq Released By Nuclear Debris Removal At Fukushima So Far

samzenpus posted 2 days ago | from the spreading-the-glow dept.

Japan 179

AmiMoJo writes The operator of the damaged Fukushima Daiichi nuclear plant says more than one trillion becquerels of radioactive substances were released as a result of debris removal work at one of the plant's reactors. Radioactive cesium was detected at levels exceeding the government limit in rice harvested last year in Minami Soma, some 20 kilometers from Fukushima Daiichi. TEPCO presented the Nuclear Regulation Authority with an estimate that the removal work discharged 280 billion becquerels per hour of radioactive substances, or a total of 1.1 trillion becquerels. The plant is believed to be still releasing an average of 10 million becquerels per hour of radioactive material.

Lawrence Krauss: Congress Is Trying To Defund Scientists At Energy Department

samzenpus posted 2 days ago | from the let-the-science-flow dept.

United States 270

Lasrick writes Physicist Lawrence Krauss blasts Congress for their passage of the 2015 Energy and Water Appropriations bill that cut funding for renewable energy, sustainable transportation, and energy efficiency, and even worse, had amendments that targeted scientists at the Department of Energy: He writes that this action from the US Congress is worse even than the Australian government's move to cancel their carbon tax, because the action of Congress is far more insidious: "Each (amendment) would, in its own way, specifically prohibit scientists at the Energy Department from doing precisely what Congress should mandate them to do—namely perform the best possible scientific research to illuminate, for policymakers, the likelihood and possible consequences of climate change." Although the bill isn't likely to become law, Krauss is fed up with Congress burying its head in the sand: The fact that those amendments "...could pass a house of Congress, should concern everyone interested in the appropriate support of scientific research as a basis for sound public policy."

Slashdot Account

Need an Account?

Forgot your password?

Don't worry, we never post anything without your permission.

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>
Create a Slashdot Account

Loading...