barlevg writes "Since the birth of film, shooting subjects of darker complexion has been a technical challenge: light meters, film emulsions, tone and color models, and the dynamic range of the film itself were all calibrated for light skin, resulting in dark skin appearing ashy and washed-out. Historically, filmmakers have used workarounds involving "a variety of gels, scrims and filters." But now we live in the age of digital filmmaking, and as film critic Ann Hornaday describes in the Washington Post, and as is showcased in recent films such as "12 Years a Slave," "Mother of George" and "Black Nativity," a collection of innovators have set to work developing techniques in lighting, shooting and post-processing designed to counteract century-old technological biases as old as the medium itself."
First time accepted submitter szczys writes "Quinn Dunki spent decades developing software before she fabricated her own 6502-based computer. Here she talks about crossing between software and hardware (or the other way around) and why this is easier today than it has been in the past."
mspohr writes "The NY Times has an interesting story about a pair of researchers who 'discovered that they could freeze, or crash, the software that monitors a [power] substation, thereby blinding control center operators from the power grid.' These two engineers wrote software to test for vulnerabilities in the control systems of electrical power grids which use a protocol called DNP3 to communicate with sub-stations. They first tested an open source implementation of the protocol and didn't find any problems. They were worried that their software test wasn't adequate so they started testing proprietary systems. The broke every single one of the 16 proprietary systems they tested initially and found nine more systems vulnerable in later testing. They were able to install malware and also found firewalls ineffective. The pair reported this to the Department of Homeland Security's Industrial Control Systems Cyber Emergency Response Team, I.C.S.-C.E.R.T. and didn't get much of a response. It's scary that our electrical grid is so vulnerable and there doesn't seem to be much urgency to get it fixed. A few patches have been issued, but who knows if the systems have been updated?"
Phopojijo writes "A monitor redraws itself top to bottom because of how the electron guns in CRT monitors used to operate. VSync was created to align the completed frames, computed by a videocard, to the start of each monitor draw; without it, midway through a monitor's draw process, a break (horizontal tear) would be visible on screen between the two time-slices of animation. Pixels on LCD monitors do not need to wait for above lines of pixels to be drawn, but they do. G-Sync is a technology from NVIDIA to make monitor refresh rates variable. The monitor will time its draws to whenever the GPU is finished rendering. A scene which requires 40ms to draw will have a smooth 'framerate' of 25FPS instead of trying to fit in some fraction of 60 FPS." NVIDIA also announced support for three 4k displays at the same time. That resolution would be 11520×2160.
CowboyRobot writes "Former high-frequency trader Jacob Loveless gives an in-depth description of the math and technology involved in HFT. From the article: 'The first step in HFT is to place the systems where the exchanges are. Light passing through fiber takes 49 microseconds to travel 10,000 meters, and that's all the time available in many cases. In New York, there are at least six data centers you need to collocate in to be competitive in equities. In other assets (foreign exchange, for example), you need only one or two in New York, but you also need one in London and probably one in Chicago. The problem of collocation seems straightforward: 1. Contact data center. 2. Negotiate contract. 3. Profit. The details, however, are where the first systems problem arises. The real estate is extremely expensive, and the cost of power is an ever-crushing force on the bottom line. A 17.3-kilowatt cabinet will run $14,000 per month. Assuming a modest HFT draw of 750 watts per server, 17 kilowatts can be taken by 23 servers. It's also important to ensure you get the right collocation. In many markets, the length of the cable within the same building is a competitive advantage. Some facilities such as the Mahwah, New Jersey, NYSE (New York Stock Exchange) data center have rolls of fiber so that every cage has exactly the same length of fiber running to the exchange cages.'"
Digi-Key Corporation, carefully tracks orders and tries to determine what's hot and what's not. His reason for doing so is to figure out what Digi-Key should stock in coming months and years. But his insights can also be used to decide what you might want to study or -- if you're already working in the field -- what products you or your company should consider developing. Digi-Key also has an online video library where they feature new products and give ideas of what you can do with them. Even if you're not an engineer or electronics hobbyist, it's fun to see what's available but may not have hit the mass market quite yet.
judgecorp writes "Intel has put back the delivery of its 14nm Broadwell desktop chip by a quarter because of a manufacturing issue that leaves it with too high a density of defects. The problem has been fixed, says CEO Brian Krzanich, who says, 'This happens sometimes in development phases.'" The good news is that it is just a defect density issue. A first round of tweaks failed to increase yield, but Intel seems to think a few more improvements to the 14nm process will result in acceptable yield.
cartechboy writes "Electric vehicle batteries have three problems — they're big, heavy, and expensive. But what if you could shift EV batteries away from being big blocks under the car and engineer them into the car itself? Research groups at Imperial College London working with Volvo have spent three years developing a way to do exactly that. The researchers are storing energy in nano structure batteries woven into carbon fiber--which can then be formed into car body panels. These panel-style batteries charge and store energy faster than normal EV batteries, and they are also lighter and more eco-friendly. The research team has built a Volvo S80 prototype featuring the panels where the battery panel material has been used for the trunk lid. With the materials used on the doors, roof and hood, estimated range for a mid-size electric car is around 80 miles."
MojoKid writes "NVIDIA is holding a tech event currently in Montreal to showcase a number of the tools and technologies the company has developed to foster state of the art in game development. NVIDIA's VP of Content and Technology, Tony Tomasi took a moment to show off Faceworks, and the 'Digital Ira' face that they've demoed at various events over the last year or so. This particular demo was a little different, however, in that it was running on Logan test kit. If you're unfamiliar, Logan is the codename for one of NVIDIA's next-gen mobile SoCs, which features a Kepler-based GPU, like current GeForce GTX 600 and 700 series parts. The demo ran perfectly smooth and the quality of imagery was as good as we've seen on any other platform to date, console, PC or mobile. Incidentally, the demo was running on an Ubuntu Linux OS."
DeviceGuru writes "Suitable Technologies is offering $50 rentals of its Beam mobile telepresence robot, allowing 50 robotics enthusiasts to remotely attend the RoboBusiness conference in Santa Clara, Calif. on Oct. 23-25. The Ubuntu- and ROS-based Beam will be available to the first 50 applicants, letting them explore the show at up to 1.5 meters/sec and interact with others via video conferencing. The bots will be allowed everywhere on the show floor as well as in conference rooms, and the show will be open late to accommodate remote users from distant time zones. The Beam is a good choice for remotely exploring conferences, saving users the cost and time of traveling to an event, says Suitable Tech; for example, RoboBusiness registration costs $1,595, not including hotel and travel. A list of the conference's keynotes, which include one by Christ Urmson, director of Google's Self-Driving Cars project, is available here."
mdsolar sends this news from the Associated Press: "The number of safety violations at U.S. nuclear power plants varies dramatically from region to region, pointing to inconsistent enforcement in an industry now operating mostly beyond its original 40-year licenses, according to a congressional study awaiting release. Nuclear Regulatory Commission figures cited in the Government Accountability Office report show that while the West has the fewest reactors, it had the most lower-level violations from 2000 to 2012 — more than 2½ times the Southeast's rate per reactor. The Southeast, with the most reactors of the NRC's four regions, had the fewest such violations, according to the report, a copy of which was obtained by The Associated Press. The striking variations do not appear to reflect real differences in reactor performance. Instead, the report says, the differences suggest that regulators interpret rules and guidelines differently among regions, perhaps because lower-level violations get limited review."
ananyo writes "ITER, the multibillion-euro international nuclear-fusion experiment, is on track to generate power by 2028. But some of the science that was supposed to happen along the way is going to be dropped to keep the vision alive. The plans form the main thrust of recommendations by a 21-strong expert panel of international plasma scientists and ITER staff, convened to reassess the project's research plan in the light of the construction delays. The plans were discussed this week at a meeting of ITER's Science and Technology Advisory Committee. The meeting is the start of a year-long review by ITER to try to keep the experiment on track to generate 500 MW of power from an input of 50 MW by 2028, and so hit its target of attaining the so-called Q10, where power output is ten times input or more. ITER initially aims to produce a Q10 for a few seconds, and then for pulses of 300–500 seconds, and work up over the following decade to output ratios of 30 times more power out than in, with pulses lasting almost an hour. Eventually the aim is to develop steady-state plasmas, which will yield information relevant to industrial-scale fusion-power generation. It is experiments relating to the understanding of longer-pulse and steady-state ITER plasmas that are most likely to be delayed beyond 2028."
itwbennett writes "Until now Sony has done a pretty good job of keeping future Playstation 4 owners happy. But last week they finally hit a rock when Game Informer posted an article about headset compatibility. At launch, USB headsets that work with the PS3 won't work with the PS4. Sony says that eventually there will be a system update that addresses the problem but for now, even your Sony-branded USB headset won't work. If you use a Bluetooth headset (as most PS3 owners do) the news is even worse. Bluetooth headsets will not be supported and no update is planned to address this. ITworld's Peter Smith is shedding a tear for his $250 Turtle Beach PX5 headset."
MojoKid writes "Imagination Technologies has announced the first CPU based on its new version of the MIPS architecture. The new P5600 chip (codenamed Warrior) is a 32-bit CPU based on the MIPS Series 5 architecture and is designed to challenge companies like ARM in the embedded and mobile markets. Major features of the new chip include: support for 40-bit memory extensions, or up to 1TB of RAM, a 128-bit SIMD engine (Single Instruction, Multiple Data), and Hardware virtualization (MIPS R5 can virtualize other machines in hardware). The P5600 core is being touted as supporting up to six cores in a cache-coherent link, most likely similar to ARM's CCI-400. According to IT, the chip is capable of executing 3.5 DMIPs/MHz in CoreMark, which theoretically puts the P5600 on par with the Cortex-A15."
Lasrick writes "Roberto Bissio has an excellent piece in a roundtable on biomass energy, pointing out that small scale biomass energy projects designed for people in poor countries aren't really a solution to climate change. After pointing out that patent protections could impede wide-spread adoption, Bissio adds that the people in these countries aren't really contributing to climate change in the first place: 'Why? Because poor people, whose carbon emissions these technologies would reduce, produce very little carbon in the first place. As I mentioned in Round One, the planet's poorest 1 billion people are responsible for only 3 percent of global carbon emissions. The 1.26 billion people whose countries belong to the Organization for Economic Co-operation and Development account for 42 percent of emissions. The rich, if they reduced their emissions by just 8 percent, could achieve more climate mitigation than the poor could achieve by reducing their emissions to zero. The rich could manage this 8 percent reduction by altering their lifestyles in barely noticeable ways. For the poor, a reduction of 100 percent would imply permanent misery.'"
Thorfinn.au writes "Even though the data density of digital information storage has increased tremendously over the last few decades, the data longevity is limited to only a few decades. If we want to preserve anything about the human race which can outlast the human race itself, we require a data storage medium designed to last for 1 million to 1 billion years. In this paper a medium is investigated consisting of tungsten encapsulated by silicon nitride which, according to elevated temperature tests, will last for well over the suggested time."
itwbennett writes "Using radio signals, MIT researchers can pinpoint someone's location — through a wall — with accuracy of +/- 10 centimeters. Fadel Adib, a Ph.D student on the project, said that gaming could be one use for the technology, but that localization is also very important. He said that Wi-Fi localization, or determining someone's position based on Wi-Fi, typically requires the user to hold a transmitter, like a smartphone for example. 'What we're doing here is localization through a wall without requiring you to hold any transmitter or receiver [and] simply by using reflections off a human body,' he said. 'What is impressive is that our accuracy is higher than even state of the art Wi-Fi localization.'"
An anonymous reader writes "Cadillac has officially unveiled its Tesla S alternative, but at $5,000 more than the Tesla, it may not be the cheaper option you've been looking for. 'Cadillac is touting the ELR's 8-inch touchscreen powered by its CUE infotainment system — which two years in is still a buggy mess — along with a range of safety and convenience features, including lane departure warning, forward collision alert, and a 24-hour concierge service to answer questions. There's also a "regen on demand" feature that allows the driver to boost the brake regeneration, slowing the vehicle and recouping energy by pulling on the flappy paddles behind the steering wheel. GM's bean counters are quick to point out that depending on what federal and state tax incentives buyers are eligible for, the net pricing could be as low as $68,495, but that's still a tough sell considering you're basically getting a Volt with more presence and less practicality.'"
Lucas123 writes "This past week at Ft. Benning, weaponized robot prototypes from four robotics companies — Northrop Grumman, HDT Robotics, iRobot Corp. and QinetiQ — demonstrated their abilities to traverse rugged terrain, fire machine guns and take out pop-up targets from a distance of 150 meters. 'They're not just tools, but members of the squad. That's the goal,' said Lt. Col. Willie Smith, chief of Unmanned Ground Vehicles at Fort Benning. For example, the Northrup Grumman's CaMEL (Carry-all Mechanized Equipment Landrover) can run for 24 hours on three-and-a-half gallons of fuel, and can be equipped with a grenade launcher, an automatic weapon and anti-tank missiles. The CaMEL also can identify targets from three-and-a-half kilometers away, using a daylight telescope or thermal imaging. The robots have also demonstrated their ability to be air dropped behind enemy lines or into remote terrain."
schwit1 writes "Like something out of a Robert Heinlein novel, students at the University of California, San Diego (UCSD) have built a metal rocket engine using a technique previously confined to NASA. Earlier this month, the UCSD chapter of the Students for the Exploration and Development of Space (SEDS) at the Jacobs School of Engineering conducted a hot fire test for a 3D-printed metal rocket engine at the Friends of Amateur Rocketry launch site in California's Mojave Desert. This is the first such test of a printed liquid-fueled, metal rocket engine by any university in the world and the first designed and printed outside of NASA."