cartechboy writes "Does the Tesla Model S suck down power even when the car is switched off? Recently, a tweet to Elon Musk with an article saying so sparked the Tesla CEO's attention. He tweeted that it wasn't right and that he'd look into the situation. Then a few hours later, he tweeted that the issue had to do with a bad 12-volt battery. Turns out Tesla had already called the owner of the affected car and sent a service tech to his house to replace that battery — and also install a newer build of the car's software. Now it appears the 'Vampire Draw' has been slain. The car went from using 4.5 kWh per day while turned off to a mere 1.1 kWh. So, it seems to be solved, but Tesla may either need to fix some software, or start sending a few new 12-volt batteries out to the folks still experiencing the issue."
itwbennett writes "Broadcom Chairman and CTO Henry Samueli has some bad news for you: Moore's Law isn't making chips cheaper anymore because it now requires complicated manufacturing techniques that are so expensive they cancel out the cost savings. Instead of getting more speed, less power consumption and lower cost with each generation, chip makers now have to choose two out of three, Samueli said. He pointed to new techniques such as High-K Metal Gate and FinFET, which have been used in recent years to achieve new so-called process nodes. The most advanced process node on the market, defined by the size of the features on a chip, is due to reach 14 nanometers next year. At levels like that, chip makers need more than traditional manufacturing techniques to achieve the high density, Samueli said. The more dense chips get, the more expensive it will be to make them, he said."
curtwoodward writes "For some reason, we're still plugging in electric-powered devices like a bunch of savages. But technology developed at MIT could soon make that a thing of the past, at least for hybrid cars. A small Boston-area company, WiTricity, is a key part of Toyota's growing experiment with wireless charging tech---something the world's largest car maker says it will start seriously testing in the U.S., Japan and Europe next year. The system works by converting AC to a higher frequency and voltage and sending it to a receiver that resonates at the same frequency, making it possible to transfer the power safely via magnetic field. Intel and Foxconn are also investors, and you might see them license the tech soon as well."
crookedvulture writes "AMD's recently introduced Radeon R9 290X is one of the fastest graphics cards around. However, the cards sent to reviewers differ somewhat from the retail units available for purchase. The press samples run at higher clock speeds and deliver better performance as a result. There's some variance in clock speeds between different press and retail cards, too. Part of the problem appears to be AMD's PowerTune mechanism, which dynamically adjusts GPU frequencies in response to temperature and power limits. AMD doesn't guarantee a base clock speed, saying only that the 290X runs at 'up to 1GHz.' Real-world clock speeds are a fair bit lower than that, and the retail cards suffer more than the press samples. Cooling seems to be a contributing factor. AMD issued a driver update that raises fan speeds, and that helps the performance of some retail cards. Retail units remain slower than the cards seeded to the press, though. Flashing retail cards with the press firmware raises clock speeds slightly, but it doesn't entirely close the gap, either. AMD hasn't explained why the retail cards are slower than expected, and it's possible the company cherry-picked the samples sent to the press. At the very least, it's clear that the 290X exhibits more card-to-card variance than we're used to seeing in a PC graphics product."
sl4shd0rk writes "It seems you can be arrested in Georgia for drawing 5 cents of electricity from a school's outdoor receptacle. Kaveh Kamooneh was charged with theft for plugging his Nissan Leaf into a Chamblee Middle School 110V outlet; the same outlet one could use to charge a laptop or cellphone. The Leaf draws 1KW/hour while charging which works out to under $0.10 of electricity per hour. Mr Kamooneh charged his Leaf for less than 30 minutes, which works out to about a nickel. Sgt. Ernesto Ford, the arresting officer, pointed out, 'theft is a theft,' which was his argument for arresting Mr. Kamooneh. Considering the cost of the infraction, it does not seem a reasonable decision when considering how much this will cost the state in legal funds. Does this mean anyone charging a laptop or cell phone will be charged with theft as well?"
OldJuke writes "Called the YotaPhone, the device pairs a traditional LCD color touch-screen on one side with a black-and-white, electronic-paper display on the other, allowing users to continuously view data in real time without having to constantly wake up their phones and drain their batteries. General interaction will be done through the LCD screen, but the e-paper display allows an image to be displayed at all times — from maps, airline boarding passes and family photos to Twitter messages and emails — but only uses power when the picture changes. BBC News interviewed the company's leader, Vlad Martynov, for a hands-on demonstration."
TheRealHocusLocus writes "Extreme bandwidth is nice, intelligent power management is cool... but folks should be spilling into the streets in thankful praise that the next generation miniature USB connector will fit either way. All told — just how many intricate miracle devices have been scrapped in their prime — because a tiny USB port was mangled? For millennia untold chimpanzees and people have been poking termite mounds with round sticks. I for one am glad to see round stick technology make its way into consumer electronics. Death to the trapezoid, bring back the rectangle! So... since we're on roll here... how many other tiny annoyances that lead to big fails are out there?" The new connector will be smaller too.
ckwu writes "As a way to generate renewable electricity, researchers have designed methods that harvest the energy released when fresh and saline water mix, such as when a river meets the sea. One such method is called pressure-retarded osmosis, where two streams of water, one saline and one fresh, meet in a cell divided by a semipermeable membrane. Osmosis drives the freshwater across the membrane to the saltier side, increasing the pressure in the saline solution. The system keeps this salty water pressurized and then releases the pressure to spin a turbine to generate electricity. Now a team at Yale University has created a prototype device that increases the power output of pressure-retarded osmosis by an order of magnitude. At a full-scale facility, the estimated cost of the electricity generated by such a system could be 20 to 30 cents per kWh, approaching the cost of other conventional renewable energy technologies."
theodp writes "Over at WhiteHouse.gov, Bill Nye has issued a call for entries for the first-ever White House Student Film Festival, a video contest for K-12 students, whose finalists will have their short films shown at the White House. From the website: "The President has an assignment for you: Our schools are more high-tech than ever. There are laptops in nearly every classroom. You can take an online course on Japanese — and then video chat with a kid from Japan. You can learn about geometry through an app on your iPad. So, what does it all mean? We're looking for videos that highlight the power of technology in schools. Your film should address at least one of the following themes: 1. How you currently use technology in your classroom or school. 2. The role technology will play in education in the future."
theodp writes "As part of its plan to improve computer science education in the U.S., the Mark Zuckerberg and Bill Gates-backed Code.org is asking school districts to sign a contract calling for Code.org to receive 'longitudinal student achievement data' for up to seven academic years in return for course materials, small teacher stipends, and general support. The Gates Foundation is already facing a backlash from the broader academic community over attempts to collect student data as part of its inBloom initiative. The Code.org contract also gives the organization veto power over the district teachers selected to participate in the Code.org program, who are required to commit to teaching in the program for a minimum of two school years."
DeviceGuru writes "DM&P Group has begun shipping a $39 Arduino compatible boardset and similar mini-PC equipped with a new computer-on-module based on a new 300MHz x86 compatible Vortex86EX system-on-chip. The $39 86Duino Zero boardset mimics an Arduino Leonardo, in terms of both form-factor and I/O expansion. The tiny $49 86Duino Educake mini-PC incorportates the same functionality, but in a 78 x 70 x 29mm enclosure with an integrated I/O expansion breadboard built into its top surface. The mini-PC's front and back provide 2x USB, audio in/out, Ethernet, and COM interfaces, power input, and an SD card slot. The hardware and software source for all the boards, including the computer-on-module, are available for download under open source licenses at the 86Duino.com website."
Hugh Pickens DOT Com writes "Economist Edward Hadas writes in the NYT that developers of bitcoin are trying to show that money can be successfully privatized but money that is not issued by governments is always doomed to failure because money is inevitably a tool of the state. 'Bitcoin exemplifies some of the problems of private money,' says Hadas. 'Its value is uncertain, its legal status is unclear, and it could easily become valueless if users lose faith.' Besides, if bitcoin ever really started to take off, governments would either ban it or take over the system says Hadas. The authorities might be motivated by a genuine concern about the stability of a shadow monetary system or they might act out of self-preservation because tax evasion would be too easy in a parallel economy. 'Part of the interest in virtual currencies like bitcoin is that their anonymity can provide a convenient cloak for criminal activity. Part is technological — this is a cool idea. And part is speculative — gamblers bet that bitcoin's value will increase,' concludes Hadas. 'Truly private money is an inferior alternative to the money that comes with the backing of a political authority. After all, no bank or bitcoin-emitter can be as public-minded as a government, and no private power can raise taxes or pass laws to unwind monetary excesses.'" Could be there's something good about money that can't be manipulated by law. Some people at least think there's plenty of value in Bitcoin and similar currencies, despite the risks. And those risks at present probably aren't enough to comfort the unfortunate Welsh fellow who (HT to reader judgecorp) "has realised he threw out a hard drive containing 7500 bitcoins, worth £4 million at today's prices. It is now under four feet of garbage in a landfill site the size of a football pitch."
Bennett Haselton has in years previous made some canny suggestions for tech-oriented holiday gifts; you can look forward to another one. Today, though, Bennett writes about one cool toy in particular: a kit to make your own creepy robot: "For over 20 years, Dutch inventor Theo Jansen has been building truck-sized sculptures that crab-walk eerily across the beach, using only the power of the wind to turn fan blades that power the gears and crankshafts and enable the walking motion. This kit allows you to assemble your own working model that 'walks' sideways across your desktop." Read on for the rest.
cartechboy writes "The Tesla Model S, for all its technical and design wizardry, has a dirty little secret: Its a vampire. The car has an odd and substantial appetite for kilowatt-hours even when turned off and parked. This phenomenon has been dubbed the 'vampire' draw, and Tesla promised long ago to fix this issue with a software update. Well, a few software updates have come and gone since then, and the Model S is still a vampire sucking down energy when it's shut down. While this is a concern for many Model S owners and would be owners, the larger question becomes: After nine months, and multiple software updates,why can't Tesla fix this known issue? Tesla has recognized the issue and said a fix would come, yet the latest fix is only a tiny improvement — and the problem remains unsolved. Is Tesla stumped? Can the issue be fixed?"
benrothke writes "Many of us have experimented with what it means to be disabled, by sitting in a wheelchair for a few minutes or putting a blindfold over our eyes. In Digital Outcasts: Moving Technology Forward without Leaving People Behind, author Kel Smith details the innumerable obstacles disabled people have to deal with in their attempts to use computers and the Internet. The book observes that while 1 in 7 people in the world have some sort of disability, (including the fact that 1 in every 10 U.S. children has been diagnosed with ADHD), software and hardware product designers, content providers and the companies who support these teams often approach accessibility as an add-on, not as a core component. Adding accessibility functionality to support disabled people is often seen as a lowest common denominator feature. With the companies unaware of the universal benefit their solution could potentially bring to a wider audience. " Read below for the rest of Ben's review.
Zothecula writes "Harvesting power from the wind and the sun is nothing new. We've seen flying wind turbines and solar power plants that aim to provide clean renewable energy. UK-based New Wave Energy has a bolder idea in the works. The company plans to build the first high altitude aerial power plant, using networks of unmanned drones that can harvest energy from multiple sources and transmit it wirelessly to receiving stations on the ground."
Hugh Pickens DOT Com writes "Joseph Stromberg writes at the Smithsonian that one afternoon in October 2005, neuroscientist James Fallon was sifting through thousands of PET scans to find anatomical patterns in the brain that correlated with psychopathic tendencies in the real world. 'Out of serendipity, I was also doing a study on Alzheimer's and as part of that, had brain scans from me and everyone in my family right on my desk,' writes Fallon. 'I got to the bottom of the stack, and saw this scan that was obviously pathological.' When he looked up the code, he was greeted by an unsettling revelation: the psychopathic brain pictured in the scan was his own. When he underwent a series of genetic tests, he got more bad news. 'I had all these high-risk alleles for aggression, violence and low empathy,' he says, such as a variant of the MAO-A gene that has been linked with aggressive behavior. It wasn't entirely a shock to Fallon, as he'd always been aware that he was someone especially motivated by power and manipulating others. Additionally, his family line included seven alleged murderers, including Lizzie Borden, infamously accused of killing her father and stepmother in 1892. Many of us would hide this discovery and never tell a soul, out of fear or embarrassment of being labeled a psychopath. Perhaps because boldness and disinhibition are noted psychopathic tendencies, Fallon has gone in the opposite direction, telling the world about his finding in a TED Talk, an NPR interview and now a new book published last month, The Psychopath Inside. 'Since finding all this out and looking into it, I've made an effort to try to change my behavior,' says Fallon. 'I've more consciously been doing things that are considered "the right thing to do," and thinking more about other people's feelings.'"
cartechboy writes "The electric car challenge is what insiders call "getting butts in seats" — and a lot of butts today still belong to humans who are not yet buying electric cars. The big question is: Why? Surveys show drivers are interested in electric cars--and that they love them once they drive them. EVs also cost less to maintain (though more to buy in the first place) and many experts say they're simply nicer to drive. So what's the problem? Disinterested dealers, uneven distribution, limited supplies, and media bias are some potential challenges. Or maybe it's just lousy marketing--casting electric cars as a moral imperative or a duty, like medicine you have to take."
necro81 writes "Little known even in environmental circles is a renewable energy success story: five geothermal power plants on Leyte Island in the Philippines — each of which produces enough power for the entire island — that collectively produce more than 10% of the Philippines' total electrical demand. From boreholes deep underground comes pressurized water heated to 280 Celsius. At the surface it flashes into steam, turning one set of turbines, then cools and contracts to spin a second set of turbines. The low-grade steam is then condensed back into water and reinjected into the bedrock. But Typhoon Haiyan destroyed the cooling towers, snapped transmission towers, and scattered the employees."
mdsolar sends this quote from an article about the politics of solar energy: "Clean energy technology has always been an easy punching bag for conservatives. Propelled by growing strain of global warming denial within their party, Republicans in Congress have proposed to slash funding for renewable energy programs in half this year, and mocked the idea of a green economy as “groovy” liberal propaganda. Their argument, as laid out by House Republicans and libertarian organs like the Cato Institute and Reason magazine, is that the federal government shouldn't 'pick winners and losers' in the energy markets or gamble taxpayer dollars on renewable-energy loans to companies like Solyndra, the Silicon Valley solar panel manufacturer that went bankrupt in 2011 after receiving $535 million in federal loan guarantees. The assumption has always been that, without heavy government subsidies, renewable energy sources like solar and wind power would never be able to compete with fossil fuels. But something funny has happened to renewables that major power companies and their Republican allies didn't see coming. Over the past two years, the solar industry has skyrocketed, with one new solar unit installed every four minutes in the US, according to the renewable energy research group Greentech Media. The price of photovoltaic panels has fallen 62 percent since January 2011. Once considered a boutique energy source, solar power has become a cost-competitive alternative for many consumers, costing an average $143 per megawatt-hour, down from $236 in the beginning of 2011. Backed by powerful conservative groups, public utilities in several states are now pushing to curb the solar industry, and asking regulators to raise fees and impose new restrictions on solar customers. And as more people turn to rooftop solar as a way to reduce energy costs—90,000 businesses and homeowners installed panels last year, up 46 percent from 2011—the issue is pitting pro-utilities Republicans against this fledgling movement of libertarian-minded activists who see independent power generation as an individual right. In other words, the fight over solar power is raging within the GOP itself."