Slashdot Mirror

theodp writes "Autodidacticism — self-education or self-directed learning — is nothing new, but the Internet holds the promise of taking it to the masses. Sugata Mitra, an Indian physicist whose earlier educational experiments inspired the film Slumdog Millionaire, is convinced that, with the Internet, kids can learn by themselves so long as they are in small groups and have well-posed questions to answer. And now, Mitra's Self-Organized Learning Environments (SOLE) are going global, with testing in schools in Australia, Colombia, England and India. On their own, children can get about 30% of the knowledge required to pass exams, so to go further, Dr. Mitra supplements SOLE with e-mediators, amateur volunteers who use Skype to help kids learn online."

Orome1 writes "A group of fraudsters has been arrested in Yakutsk and Moscow for allegedly compromising all the ATMs in the city of Yakutsk — population: around 210,000 — in the Republic of Yakutia in the Russian Federation. Three of the men formed the actual criminal group, and the fourth — a Moscow-based malware developer — was 'subcontracted' by them and received 100,000 rubles (some $3200) to develop a custom ATM virus with which they would infect the devices."

Csiko writes "Researchers at Boston University's department of cognitive and neural systems are working on an artificial brain implemented with memristors. 'A memristor is a two-terminal device whose resistance changes depending on the amount, direction, and duration of voltage that's applied to it. But here's the really interesting thing about a memristor: Whatever its past state, or resistance, it freezes that state until another voltage is applied to change it. Maintaining that state requires no power.' Also theoretically described, solid state versions of memristors have not been implemented until recently. Now researchers in Boston claim that memristors are the new key technology to implement highly integrated, powerful artificial brains on cheap and widely available hardware within five years."

eldavojohn writes "Amnon Marinov, a physicist specializing in super heavy elements, claims that a stable isotope of roentgenium is commonly found alongside gold, just in very small quantities that we could not measure before. To prove this, he boiled gold in a vacuum, postulating that as the gold evaporated, the roentgenium should remain. He did this for two weeks and then passed the resulting mess through a mass spectrometer and was left with several peaks that could be explained away except for one. Marinov lead the team that found the first super heavy 122 thorium isotope in nature a few years back and now claims that, despite all indications that this super heavy element shouldn't exist longer than a few seconds, he has found a stable isomer of roentgenium in nature. Is he on to something, or overlooking a simpler explanation in his quest for evidence of the island of stability long theorized by physicists?"

eldavojohn writes "Amnon Marinov, a physicist specializing in super heavy elements, claims that a stable isotope of roentgenium is commonly found alongside gold, just in very small quantities that we could not measure before. To prove this, he boiled gold in a vacuum, postulating that as the gold evaporated, the roentgenium should remain. He did this for two weeks and then passed the resulting mess through a mass spectrometer and was left with several peaks that could be explained away except for one. Marinov lead the team that found the first super heavy 122 thorium isotope in nature a few years back and now claims that, despite all indications that this super heavy element shouldn't exist longer than a few seconds, he has found a stable isomer of roentgenium in nature. Is he on to something, or overlooking a simpler explanation in his quest for evidence of the island of stability long theorized by physicists?"

Hugh Pickens writes "Time Magazine reports that just in time for the holidays, the British Navy has put the aircraft carrier HMS Invincible up for sale on an eBay-like website. The proud 690-foot warship sailed Her Majesty's seas from 1980 to 2005, and took part in the Falklands, Balkans and Iraq campaigns. The ship underwent a major refit in 2004 but was decommissioned in 2005 with the proviso that she could be 'reactivated' at 18 months notice if a crisis beckoned but over the years her engines, pumps and gear boxes were cannibalized for use in other ships. If interested go to the auction site and put her to your 'wish list,' or add her to your 'cart.' Interestingly enough, the Australian government had originally planned to purchase the ship in 1982 but the Falklands war intervened and in July 1982 the British Ministry of Defence announced that it had withdrawn its offer to sell Invincible and that it would maintain a three-carrier force."

bLanark writes "Well, as children and adults all over the world begin their day with chocolate, with the traditional Advent calendar, I'd like to remind you that there's an alternative for geeks. The Perl Advent calendar will give you a new Perl tip every day right up to Christmas."

wiredmikey writes "The Internet's leading architects have considered the rapid growth and fragmentation of core routing tables one of the most significant threats to the long-term stability and scalability of the Internet. In April 2010, about 15% of the world's Internet traffic was hijacked by a set of servers owned by China Telecom. In the technical world, this is typically called a prefix hijack, and it happened due to a couple of wrong tweaks made at China Telecom. Whether this was intentional or not is unknown, but such routing accidents are all too common online. While BGP is the de-facto protocol for inter-domain routing on the Internet, actual routing occurs without checking whether the originator of the route is authorized to do so. The global routing system itself is made up of autonomous systems (AS) which are simply loosely interconnected routing domains. Each autonomous system decides, unilaterally, and even arbitrarily, to trust everything it hears from any other AS, to use that information without validation, and to further transmit that information to its other peers..."

eldavojohn writes "Have you ever wanted to catch the perfect photo with your SLR camera but couldn't time the shot just right? Photography enthusiast Matt Richardson brings us an instructional video over at Make Magazine that shows how to use some very basic breadboarding and an Arduino Nano to do some high-speed flash photography that is timed by sound instead of your finger hitting the button on the camera. He pops a balloon and smashes a wine glass to show some results. His code is available on Github, and you can find more of this sly hardware hacker on his YouTube channel."

tenori writes "Want to intercept internet traffic but have a pesky public consultation to get out of the way? Just keep the consultation period as short as you can get away with and exclude the people it affects. Rights groups are questioning why the coalition government has only allowed a month for changes to the RIPA act. The Home Office continues to refuse to meet civil society groups, saying, 'We are focusing on those parties directly affected by the changes to the extent that those parties would be subject to the civil sanction or directly concerned with it, or are directly responsible, where lawful interception is taking place, for ensuring that consent has been obtained to the interception.' The ORG said, 'In other words, the many thousands of people who have been adversely affected by illegal interception, and those who seek to stand up for their rights, are not "directly concerned" according to the Home Office.'"

theodp writes "While Wikileaks itself is under a DoS attack, details about the US State Department cables obtained by WikiLeaks are starting to come out via the mainstream media. Among the most newsworthy, reports Techcrunch's Erick Schonfeld, is one set which deals with the massive computer attack on Google and other companies which was first revealed last January. According to the NY Times, some of the new leaked cables point directly at China's Politburo for instigating the original attacks, which should shed some more light on why the White House and State Department backed Google so vociferously at the time. Developing, as Drudge likes to say."

Hugh Pickens writes "Jonathan Fahey writes for AP that as the first mass-market electric cars go on sale next month, the power industry faces a huge growth opportunity, with SoCal Edison expecting to be charging 100,000 cars by 2015 and California setting a goal of 1 million electric vehicles by 2020. But utility executives are worried that the difficulty of keeping the lights on for the first crop of buyers — and their neighbors — could slow the growth of this industry because it's inevitable that electric utilities will suffer some difficulties early on. 'We are all going to be a lot smarter two years from now,' says Mark Perry, director of product planning for Nissan North America. When plugged into a home charging station the first Leafs and Volts will draw 3,300 Watts and take about 8 hours to deliver a full charge, but both carmakers may soon boost that to 6,600 Watts. The Tesla Roadster, an electric sports car with a huge battery, can draw 16,800 Watts. That means that adding an electric vehicle or two to a neighborhood can be like adding another house, and it can stress the equipment that services those houses. The problem is that transformers that distribute power from the electrical grid to homes are often designed to handle less than about 12,000 watts so the extra stress on a transformer from one or two electric vehicles could cause it to overheat and fail, knocking out power to the block."

IronWilliamCash writes "I currently work for a small software development company and for many years we have been using internally built tools for all our software specifications, bugs, change requests and the like. Traceability is a big issue as we are CMMI level 2, and thus our internal processes need to be clear and everything must be documented. We are currently looking into getting a unified solution for this, and after quite a bit of Googling, there are quite a few different options (Contour, Kovair, MKS, Doors, CaliberFM, Accept360, etc.). I was wondering: what do other Slashdotters use in their everyday life? Does it fulfill your needs? And what is the most important part in a specification management tool?"

xt writes "A team of physicists, led by the University of Bonn's Martin Weitz, have managed to create a Bose-Einstein condensate (here's a more detailed explanation) out of photons, previously thought to be impossible. The research was published in the journal Nature (abstract, and the arXiv has the submitted paper as a PDF) and has possible applications on solar energy technology and shortwave lasers, which would be well-suited to the manufacture of computer chips as the process uses lasers to etch logic circuits onto semiconductor materials. Seems like Moore's law is safe again!"

xt writes "A team of physicists, led by the University of Bonn's Martin Weitz, have managed to create a Bose-Einstein condensate (here's a more detailed explanation) out of photons, previously thought to be impossible. The research was published in the journal Nature (abstract, and the arXiv has the submitted paper as a PDF) and has possible applications on solar energy technology and shortwave lasers, which would be well-suited to the manufacture of computer chips as the process uses lasers to etch logic circuits onto semiconductor materials. Seems like Moore's law is safe again!"

ttsiod writes "Back in 2001, I coded HeapCheck, a GPL library for Windows (inspired by ElectricFence) that detected invalid read/write accesses on any heap allocations at runtime — thus greatly helping my debugging sessions. I published it on my site, and got a few users who were kind enough to thank me — a Serbian programmer even sent me $250 as a thank you (I still have his mails). After a few years, Microsoft included very similar technology in the operating system itself, calling it PageHeap. I had more or less forgotten this stuff, since for the last 7 years I've been coding for UNIX/Linux, where valgrind superseded Efence/dmalloc/etc. Imagine my surprise when yesterday, Googling for references to my site, I found out that the technology I implemented, of runtime detection of invalid heap accesses, has been patented in the States, and to add insult to injury, even mentions my site (via a non-working link to an old version of my page) in the patent references! After the necessary 'WTFs' and 'bloody hells' I thought this merits (a) a Slashdotting, and (b) a set of honest questions: what should I do about this? I am not an American citizen, but the 'inventors' of this technology (see their names in the top of the patent) have apparently succeeded in passing this ludicrous patent in the States. If my code doesn't count as prior art, Bruce Perens's Efence (which I clearly state my code was inspired from) is at least 12 years prior! Suggestions/cursing patent trolls most welcome."

goldaryn writes "Physorg.com is running an interesting story about the work of Oxford-based theoretical physicist Roger Penrose. Penrose has been studying CWB radiation and believes it's possible that space and time did not come into being at the Big Bang but that our universe in fact continually cycles through a series of 'aeons.' He believes that he has found evidence supporting his theory that the universe infinitely cycles."

goldaryn writes "Physorg.com is running an interesting story about the work of Oxford-based theoretical physicist Roger Penrose. Penrose has been studying CWB radiation and believes it's possible that space and time did not come into being at the Big Bang but that our universe in fact continually cycles through a series of 'aeons.' He believes that he has found evidence supporting his theory that the universe infinitely cycles."

formfeed writes "The register claims that 'Ubuntu is moving away from its established six-month-cycle and potentially to a future where software updates land on a daily basis.' While this sounds like a sudden change, it is apparently more of a long-term thought. The Register quotes Shuttleworth: '"Today we have a six-month release cycle," Shuttleworth said. "In an internet-oriented world, we need to be able to release something every day. That's an area we will put a lot of work into in the next five years. The small steps we are putting in to the Software Center today, they will go further and faster than people might have envisioned in the past."' But given that many of Shuttleworth's thoughts became decisions later on, it might be interesting to see, where this one leads. Interestingly enough, five years is about the time when Ubuntu will run out of letters."

thecarchik writes "One giant container ship pollutes the air as much as 50 million cars. Which means that just 15 of the huge ships emit as much as today's entire global 'car park' of roughly 750 million vehicles. Among the bad stuff: sulfur, soot, and other particulate matter that embeds itself in human lungs to cause a variety of cardiopulmonary illnesses. Since the mid-1970s, developed countries have imposed increasingly stringent regulations on auto emissions. In three decades, precise electronic engine controls, new high-pressure injectors, and sophisticated catalytic converters have cut emissions of nitrous oxides, carbon dioxides, and hydrocarbons by more than 98 percent. New regulations will further reduce these already minute limits. But ships today are where cars were in 1965: utterly uncontrolled, free to emit whatever they like." According to Wikipedia, 57 giant container ships (rated from 9,200 to 15,200 twenty-foot equivalent units) are plying the world's oceans.

swellconvivialguy writes "Next year marks the bicentennial of the 1811-12 New Madrid earthquakes, with earthquake drills and disaster tourism events planned across the Midwest, including the Great Central US ShakeOut. But despite the fact that Earthquake Hazard Maps equate the New Madrid seismic zone with California, geologist Seth Stein says new science (especially GPS data) tells us that the hazard has been significantly overestimated, and that we should not spend billions on earthquake preparations in the Midwest."

omega_cubed writes "The New York Times reports that Jim Sanborn, the sculptor who created the wavy metal pane called Kryptos that sits in front of the CIA in Langley, VA, has gotten tired of waiting for code-breakers to decode the last of the four messages. 'I assumed the code would be cracked in a fairly short time,' [Sanborn] said, adding that the intrusions on his life from people who think they have solved his fourth puzzle are more than he expected. So now, after 20 years, Mr. Sanborn is nudging the process along. He has provided The New York Times with the answers to six letters in the sculpture's final passage. The characters that are the 64th through 69th in the final series on the sculpture read NYPVTT. When deciphered, they read BERLIN."

still_sick writes "I'm currently responsible for operations at a software-as-a-service startup, and we're increasingly hitting limitations in what we can do with relational databases. We've been looking at various NoSQL stores and I've been following Adrian Cockcroft's blog at Netflix which compares the various options. I was intrigued by the most recent entry, about Translattice, which purports to provide many of the same scaling advantages for SQL databases. Is this even possible given the CAP theorem? Is anyone using a system like this in production?"

timothy writes "The Lingerie Football League was looking toward expanding to Oklahoma City. But that would be wrong! For too many reasons for the mayor to list! Honestly! Good argument for separation of sports and state."

An anonymous reader writes "A particularly nasty Wikipedia vandal has forced a discussion to take place over whether to block edits from an address range used by over 67 million Verizon customers. Verizon has not responded to abusive Wikipedia users on their network before, even though the abusive Verizon users have released private information (phone numbers, etc.) of numerous individuals, and made countless threats that have also been reported to law enforcement. Wikipedia has done something similar in the past with users on the AOL network, which used proxy servers and thus allowed vandals to continue disrupting the site. Discussion is also taking place on alternate solutions to deal with abuse from this Verizon user, named 'Zsfgseg' on Wikipedia. If a block of millions is enacted, Verizon could potentially change how they assign IP addresses, or be forced at least to address a PR nightmare."

theodp writes "Microsoft Research has made it possible for a mother to surf the web while nursing her newborn, thanks to its newly-patented 'foot-based user interface' (FUI?). 'In addition to causing health problems,' explains Microsoft in the patent, 'the traditional keyboard and mouse interface can be simply inconvenient in certain situations as well. In one instance, a mother with a baby in her arms is unable to easily perform simple tasks, such as checking email, on a computer.' Users of the 'Foot-Based Interface for Interacting With a Computer,' however, will be able to move their feet and step on the floor a la DDR to execute various commands, such as deleting email or scrolling down the screen. Due to the usual foot-dragging on the part of the USPTO, the patent — filed for in 2006 — was essentially obsolete by the time it was issued on Tuesday, a week after Microsoft's Kinect launch."

An anonymous reader writes "A young male of Asian appearance was caught in disguise during a flight from Hong Kong to Canada. The disguise consisted of a molded silicone face and neck mask, hat, glasses and cardigan. An intelligence alert (PDF) from Canada Border Services Agency contains photos of the man with and without the disguise as well as further details of the incident. Suspicions were raised at the start of the flight when the subject was noted as having an elderly appearance that didn't match his hands of youthful appearance. Later in the flight the subject entered an aircraft washroom to remove the disguise and was caught emerging as an early 20s Asian male. This disguise is more elaborate than those used by the suspected perpetrators of the assassination of Mahmoud Al-Mabhouh in Dubai, January 2010. Will the continued introduction of biometric passport security deprecate the use of disguises or will disguises simply become more sophisticated?"

Ponca City writes "The Tri-City Herald reports that radioactive rabbit droppings were recently found near the old Hanford Nuclear Site in southeast Washington that produced nuclear materials for 40 years and is now being decontaminated. The Department of Health looks for contamination off-site to make sure there is no public hazard and a rabbit trapped at the 300 Area caught their attention because it was close enough to the site's boundaries to potentially come in contact with the public. Joe Franco, an assistant manager for the Department of Energy, said workers erected fences, removed potential food sources and even sprayed the scent of a predator around the perimeter to prevent any other rabbit contamination and the Department of Energy said only one of 18 rabbits surveyed were deemed contaminated. Researchers narrowed the area of possible contamination to the 327 Building used during the Cold War for testing highly radioactive materials, particularly fuel elements and cladding that were irradiated at Hanford reactors as part of plutonium production for the nation's nuclear weapons program. Because the number of contaminated droppings being discovered on-site has decreased, officials now believe it's possible that just one rabbit might have been contaminated and they now are finding old droppings from it."

Ponca City writes "Every year, millions of Americans pay needless penalties because they don't file their taxes on time, forgo huge amounts of money in matching 401(k) contributions because they never get around to signing up for a retirement plan, and risk blindness from glaucoma because they don't use their eyedrops regularly. James Surowiecki writes that procrastination is a basic human impulse, a peculiar irrationality stemming from our relationship to time — in particular, from a tendency that economists call 'hyperbolic discounting,' the ability to make rational choices when they're thinking about the future, but, as a future event gets closer, short-term considerations overwhelm their long-term goals. Game theorist Thomas Schelling proposes that we think of ourselves a collection of competing selves, jostling, contending, and bargaining for control, where one represents your short-term interests (having fun, putting off work, and so on), while another represents your long-term goals. Philosopher Mark Kingwell puts it in existential terms: 'Procrastination most often arises from a sense that there is too much to do, and hence no single aspect of the to-do worth doing. Underneath this rather antic form of action-as-inaction is the much more unsettling question whether anything is worth doing at all.'"

MojoKid writes "When the Federal Trade Commission settled their investigation of Intel, one of the stipulations of the agreement was that Intel would continue to support the PCI Express standard for the next six years. Intel agreed to all the FTC's demands, but Intel's upcoming Oak Trail Atom platform presented something of a conundrum. Oak Trail was finalized long before the FTC and Intel began negotiating, which means Santa Clara could've been banned from shipping the platform. However, the FTC and Intel have recently jointly announced an agreement covering Oak Trail that allows Intel to sell the platform without adding PCIe support — for now."

aabelro writes "Don Syme has announced the release of the F# compiler source code as a code drop under Apache 2.0. He wrote, 'The F# PowerPack now includes libraries, tools and the compiler/library source code drops. I'd like to take a moment to explain the F# team's approach to this. Firstly, the source for the F# compiler in our MSI/CTP releases has been available for some time, in the releases themselves, so in that sense there's not much new in this release. Secondly, we've always made sure we have a free download binary release of F# available, and will continue to do that, and that should still be the main way you "get" a release of F#. However, we've long discussed making compiler+library source available in a different way. After some discussion, we've decided to do this via a "code drop" model, where we make available versions of the compiler+library code logically matching each release of the F# language itself.'"

Velcroman1 writes "On October 26, 2,000 Norwegians watched the sun set. The next time they'll see it rise? Sometime in February. Extended nighttime is an annual occurrence for the residents of Longyearbyen, Norway — Earth's northernmost town. Located at 78 degrees north latitude in the Arctic circle, Longyearbyen experiences a phenomenon called Polar Night, in which the town remains in perpetual darkness for four months each winter. To lighten up the seemingly endless night, Philips has started an experiment called 'Wake Up the Town.' And anyone who's complained about the brief daylight hours in winter will want to know how it works."

snydeq writes "T-Mobile has officially joined Sprint in pushing the promise of '4G' mobile services on consumers, despite the fact that, according to the ITU standards body, neither carriers' offerings constitute 4G mobile technology. In Sprint's defense, it has been advertising its WiMax-covered areas as 4G for nearly a year — technically not a lie because until last month 4G didn't mean anything, InfoWorld's Galen Gruman reports. But now that the ITU has provided a standard against which the FCC and FTC can judge truth in advertising, T-Mobile's new 4G ad campaign is a 'bald-faced lie,' Gruman writes." National ad campaigns take more than a month to coordinate, though — if the term was basically free-floating until last month (with quite a few candidate standards over the years), it seems hard to condemn companies too harshly for using a marketing catch-phrase.

nacturation writes "Three years before Photoshop 1.0 was released, computer engineers in the USSR were already retouching photographs using some surprisingly advanced technology. A video shows how the Soviets went about restoring damaged images with the help of rotary scanners, magnetic tape, and trackballs. No word on whether this technology was used to fake moon landings or put missiles in Cuba." Photo manipulation in the USSR (and elsewhere) had a pretty good jump on computers, though.

theodp writes "Oracle said HP has refused to accept a subpoena requiring new CEO Leo Apotheker to testify in a trial against his former employer SAP, which will determine how much SAP owes Oracle for copyright infringement by its discontinued TomorrowNow unit. 'Mr. Apotheker started work for HP on Monday, but it now appears that the HP board of directors has decided to keep him away from HP's headquarters and outside the court's jurisdiction,' an Oracle spokeswoman said. 'We will continue to try to serve him,' she added. An HP spokeswoman countered: 'Given Leo's limited knowledge of and role in the matter, Oracle's last-minute effort to require him to appear live at trial is no more than an effort to harass him and interfere with his duties and responsibilities as HP's CEO.' The spokeswoman declined to discuss the whereabouts of Mr. Apotheker, who was featured in a 2006 SAP/TomorrowNow press release attacking the 'uncertainty' of Oracle. Coincidentally, among the charges leveled at SAP/TomorrowNow was 'pretextual customer log-in,' an area in which HP has some subject matter expertise."

eldavojohn writes "As a gold member, China Mobile has joined The Linux Foundation putting it next to AMD, Google, HP and Cisco in the roster of the foundation's gold members. This marks the very first time a Chinese enterprise has joined The Linux Foundation. Earlier this year, we saw the first Chinese company openly participate in open source and now China Mobile, ranked 77th in the world by Fortune with over half a billion customers, has joined the foundation that fosters the growth of Linux."

joshgnosis writes "The CSIRO has unveiled new technology that could bring internet to people in rural or remote parts of Australia using their existing TV antennas. Analog TV signal is set to be switched off in 2013 but this technology could see the spectrum used to deliver internet straight into people's homes through their TV antenna. Gartner expert Robin Simpson told ZDNet Australia that this would make it much easier for companies to get new customers. 'What appeals to me about it is that it re-uses existing infrastructure, all of the competing wireless technologies tend to use high frequencies and therefore require new base stations, new spectrum and new receiving antenna infrastructure as well,' he said. 'The fact that they're re-using the analog TV stuff gives them a much easier market entry strategy.'"

eldavojohn writes "We've only had evidence for three kinds of neutrinos so far, but a recent test at Fermilab involving an antineutrino beam has reinforced a Michigan researcher's earlier experiment suggesting a fourth flavor. What's really odd about this is that a prior neutrino test (carried out as part of project MiniBooNE) did not result in indications of such strange oscillations. According to the researcher, 'The simplest explanation involves adding new neutrino-like particles, or sterile neutrinos, which do not have the normal weak interactions.' But this could also be an unknown or misunderstood effect. A Los Alamos National Laboratory scientist added that an explanation of this strange anomaly could result in understanding 'matter asymmetry of the universe, or why the universe is primarily composed of matter, rather than antimatter.' The results are published in the Physical Review Letters."

eldavojohn writes "We've only had evidence for three kinds of neutrinos so far, but a recent test at Fermilab involving an antineutrino beam has reinforced a Michigan researcher's earlier experiment suggesting a fourth flavor. What's really odd about this is that a prior neutrino test (carried out as part of project MiniBooNE) did not result in indications of such strange oscillations. According to the researcher, 'The simplest explanation involves adding new neutrino-like particles, or sterile neutrinos, which do not have the normal weak interactions.' But this could also be an unknown or misunderstood effect. A Los Alamos National Laboratory scientist added that an explanation of this strange anomaly could result in understanding 'matter asymmetry of the universe, or why the universe is primarily composed of matter, rather than antimatter.' The results are published in the Physical Review Letters."

Jamie recommends a blog post from software engineer Louis Brandy explaining how using genetic algorithms to evaluate build orders in StarCraft 2 has led to some surprisingly powerful results. Quoting: "One of the reasons build-order optimization is so important is that you can discover openings that 'hard-counter' other openings. If I can get an army of N size into your base when you do opening X, you will always lose. ... a genetic algorithm is a type of optimization algorithm that tries to find optimal solutions using a method analogous to biologic evolution (to be specific: descent with modification & natural selection). Put simply, you take a 'population' of initial build orders, evaluate them for fitness, and modify the population according to each element’s fitness. In other words, have the most successful reproduce. The program’s input is simply the desired game state. In practice, this means 'make N units' to determine some rush build order (but it also allows for other types of builds, like make N workers with some defensive structures and a small army)."

theodp writes "To move forward with programming languages, argues Poul-Henning Kamp, we need to break free from the tyranny of ASCII. While Kamp admires programming language designers like the Father-of-Go Rob Pike, he simply can't forgive Pike for 'trying to cram an expressive syntax into the straitjacket of the 95 glyphs of ASCII when Unicode has been the new black for most of the past decade.' Kamp adds: 'For some reason computer people are so conservative that we still find it more uncompromisingly important for our source code to be compatible with a Teletype ASR-33 terminal and its 1963-vintage ASCII table than it is for us to be able to express our intentions clearly.' So, should the new Hello World look more like this?"

SocResp writes "A chemical called n-hexane has been poisoning the nervous systems of Chinese workers who assemble touchscreen devices for Apple and other companies, an investigative journalist from the Australian Broadcasting Corporation reports. It's scary to think that people are being damaged to pursue high production rates. For companies with soaring profits and share prices, and elaborate product development and marketing, it seems they should be all the more culpable if they fail to take care of the production workers."

quartertime writes "Remember Reflections on Trusting Trust, the classic paper describing how to hide a nearly undetectable backdoor inside the C compiler? Here's an interesting piece about how to hide a nearly undetectable backdoor inside hardware. The post describes how to install a backdoor in the expansion ROM of a PCI card, which during the boot process patches the BIOS to patch grub to patch the kernel to give the controller remote root access. Because the backdoor is actually housed in the hardware, even if the victim reinstalls the operating system from a CD, they won't clear out the backdoor. I wonder whether China, with its dominant position in the computer hardware assembly business, has already used this technique for espionage. This perhaps explains why the NSA has its own chip fabrication plant."

mask.of.sanity writes "An Australian high school has installed 'secure' fingerprint scanners for roll call for senior students, which savvy kids may be able to circumvent with sweets from their lunch box. The system replaces the school's traditional sign-in system with biometric readers that require senior students to have their fingerprints read to verify attendance. The school principal says the system is better than swipe cards because it stops truant kids getting their mates to sign-in for them. But using the Gummi Bear attack, students can make replicas of their own fingerprints from gelatin, the ingredient in Gummi Bears, to forge a replica finger. The attack worked against a bunch of scanners that detect electrical charges within the human body, since gelatin has virtually the same capacitance as a finger's skin."

eldavojohn writes "Recent research on bumble bees has proven that the tiny bee is better than computers at the traveling salesman problem. As bees visit flowers to collect nectar and pollen they discover other flowers en route in the wrong order. But they still manage to quickly learn and fly the optimally shortest path between flowers. Such a problem is NP-Hard and keeps our best machines thinking for days searching for a solution but researchers are quite interested how such a tiny insect can figure it out on the fly — especially given how important this problem is to networks and transportation. A testament to the power of even the smallest batch of neurons or simply evidence our algorithms need work?"

skwilcox writes "From Wikipedia: 'The Loebner Prize is an annual competition in artificial intelligence that awards prizes to the chatterbot considered by the judges to be the most human-like. The format of the competition is that of a standard Turing test. A human judge poses text questions to a computer program and a human being via computer. Based upon the answers, the judge must decide which is which.' My chatbot, Suzette, won this year's Loebner and even confused a judge into voting for her over a human (or should I say he confused himself). Here is the blow-by-blow of this weird event." Read on below for the rest; this sounds like it would have been a fun competition to watch. skwilcox continues:

"When I arrived at the contest, I figured I had good odds to win if nothing went horribly wrong. Yes, Suzette had easily qualified over the 3 other competitors (her score 11 pts, the nearest competitor's 7.5). Her design and data naturally gave her an edge over her competitors on the human knowledge test questions of the qualifiers. But human judge chat was an entirely different matter than the qualification test. Still, I felt she could carry on a detailed conversation better than the others and should win.

Initial installation of the programs occurred on Friday. From prechat conversations with the other contestants I learned that A.L.I.C.E. came with 3 redundant disks. Yet all three turned out to be blank! What a scare that must have been. Dr. Wallace managed to install by retrieving the program over the Internet. Cleverbot is now at 45 million lines of memorized user chat (at a rate of doubling every year). And UltraHal is now listening to tweets, so has 300K of user chat it learned and 400K of tweets it has accepted for learning (code decides if the user has had enough responses and doesn't trigger any red flags).

Then we get to the competition. While the CalState organizers had initially planned to have various interdepartmental professors act as judges (like English dept, etc.), they backed out at the last minute, so all the judges were from the Engineering/Computer Science dept. Talk about guys who might know what to expect from chatbots! And all the humans were students from the same departments. What a weird mixture to compete in. And then, each round was 25 minutes. That's bad if you want confuse a judge about who is human. But really, the programs have no chance for that. So it's good because it gives the human time to compare each program against the other. Though it's not clear to me that the judges tried to use their time to do that.

And the students didn't really understand their role. It was merely to BE HUMAN and convince the judges of that. Before startup there was informal chatting between humans and judges, which was obviously inappropriate and it was then pointed out to the humans that since the judges already knew their names, they had best use false ones in the competition.

So, Round 1. After a few exchanges, somehow Suzettte got stuck into repeating exactly what the judge said for the rest of the round. I have no idea how. The round is a total disaster. I've never seen such a bug before. Maybe it's in my only-lightly-tested protocol for the competition. I have no idea. But it completely derails my hopes for Suzette. She could still win on points only if she outdoes her opponents for every other judge and the other contestants vary all over the place.

Round 2, a great demonstration of Suzette. She should win on this round alone.

Round 3 gets off to a horrible start. Somehow, Suzette can hear the judge but the judge can't hear Suzette. Makes no sense. A couple of restarts of Suzette doesn't fix this. Eventually they restart the judge program, and that clears it (not that that makes any sense either). Then, after a few rounds, it's clear Suzette has the judge from hell. He wants to know who she's going to vote for in the upcoming election (the unspecified California governor's race). And when she has no useful answer he wants her to name a candidate in the race. And when she has no answer to that, he simple keeps repeating the question ad nauseum, insisting she answer it. Suzette gets irritated. Then she gets angry. Suzette then gets bored. Suzette threatens to hang up on him The judge doesn't back down until the last seconds of the round. I figure that's the end of life as we know it.

Round 4 is a mixed bag. Suzette is ok but not great. It's all over.

When the scores are tallied, Suzette ties with Rollo Carpenter's Cleverbot for 2nd-3rd. Yet, it turns out, the 3rd round judge got the human subject from hell. Poetic justice! The human was all over the place -- confusing, vague. The judge voted irritated/angry/bored Suzette as human. Instant win since no other program swayed the judges.

What more can I say?"

pinkeen writes "I've used Linux as my work & play OS for 5+ years. The one thing that constantly drives me mad is its IO scheduling. When I'm copying a large amount of data in the background, everything else slows down to a crawl while the CPU utilization stays at 1-2%. The process which does the actual copying is highly prioritized in terms of I/O. This is completely unacceptable for a desktop OS. I've heard about the efforts of Con Kolivas and his Brainfuck Scheduler, but it's unsupported now and probably incompatible with latest kernels. Is there any way to fix this? How do you deal with this? I have a feeling that if this issue was to be fixed, the whole desktop would become way more snappier, even if you're not doing any heavy IO in the background." Update: 10/23 22:06 GMT by T : As reader ehntoo points out in the discussion below, contrary to the submitter's impression, "Con Kolivas is still actively working on BFS, it's not unsupported. He's even got a patch for 2.6.36, which was only released on the 20th. He's also got a patchset out that I use on all my desktops which includes a bunch of tweaks for desktop use." Thanks to ehntoo, and hat tip to Bill Huey.

rhettb writes "The mystery of the legendary chupacabra, a beast said to drain the blood of domestic animals at night, has been solved, according to a University of Michigan scientist. Biologist Barry O'Connor says that most chupacabra sightings are probably linked to coyotes with mange, a disease caused by the same species of mite that triggers scabies in humans. Severe cases of mange cause hair loss and thickening of skin in wild dogs and can lead to bacterial skin infections that produce a foul odor characteristic of the 'chupacabra.' Wombats and squirrels are also susceptible to mange, suggesting that chupacabra are found in trees and Down Under."

theodp writes "With its forthcoming Lion Mac OS and new Apple-curated Mac Apps Store, Apple will be locking down top tier applications on the Mac similar to the way apps are locked down on the iPad and iPhone. Only by submitting their apps to Apple's store and giving up 30% of their receipts will developers get to take advantage of two new OS features. The first is Apple's new 'Launchpad,' a tool for easily opening application; the second is the ability to update apps to new versions with one click. It will be a lot easier to use apps bought from the Mac App Store than ones downloaded in the wild. It didn't have to be that way, says Valleywag's Ryan Tate: 'Apple could have enabled its Launchpad and auto-update features for all applications, sold through the Apple Store or not. For example, an open system for updating applications has been in use for years on Ubuntu... Ubuntu's 'Apt' (Advanced Packaging Tool) lets users install, update, and remove software of their choosing with a single command. There's a central list of apps curated by Ubuntu's maintainers, but users are free to add and install from other lists... But Apple seems to have made a very clear choice not to take the open route.' Longtime Apple developer Dave Winer was also concerned, tweeting during Apple's presentation 'Is this the end of the Mac as an open platform?' The news also prompted developer Anil Dash to call for an open alternative to the Mac App Store."

Ponca City writes "Alexis Madrigal writes in the Atlantic that for all its warts, Wikipedia has been able to retain a generally productive and civil culture. According to Joseph Reagle, who wrote his PhD dissertation on the history and culture of Wikipedia, members of Wikipedia actively work to maintain neutrality, even if that's sometimes nearly impossible. The community has a specific approach to people designed to promote basic civility and consensus decision-making. The number one rule is 'assume good faith,' and the rest of the site's rules are largely extensions of kindergarten etiquette. The idea is that to find consensus, you must see your opponents as people like yourself. Keeping an open perspective on both knowledge claims and other contributors creates an extraordinary collaborative potential, Reagle says. The features of the software help, too. It's easier to be relaxed about newcomers' editing or changes being made when you can hit the revert button and restore what came before. 'Like Wikipedia itself, which seems to tap our natural urge to correct things that we think are wrong, maybe our politics will self-correct,' writes Madrigal. 'Maybe this period of extra nasty divisiveness in politics will push us out of the USENET phase and into a productive period of Wikipedian civility.'"