crookedvulture writes "The back and forth battle for PC graphics supremacy is quite a thing to behold. Last week, Nvidia cut GeForce prices in response to the arrival of AMD's latest Radeons. That move caused AMD to rejigger its plans for the new Radeon R9 290, which debuted today with a higher default fan speed and faster performance than originally planned. This $400 card offers almost identical performance to AMD's flagship R9 290X for $150 less. Indeed, it's often faster than Nvidia's $1000 GeForce Titan. But the 290 also consumes a lot more power, and its fan spins up to 49 decibels under load. Fortunately, the acoustic profile isn't too grating. Radeon R9 290 isn't the only new graphics card due this week, either. Nvidia is scheduled to unveil its GeForce GTX 780 Ti on November 7, and that card could further upset the balance at the high end of the GPU market. As AMD and Nvidia trade blows, PC gamers seem to be the ones who benefit." Additional reviews available from AnandTech, PC Perspective, Hot Hardware, and Tom's Hardware.

First time accepted submitter 192_kbps writes "Mike Clements, a long-haul trucker from West Jordan, Utah, built the largest amateur telescope ever with a whopping 70 inch primary mirror he purchased at auction. The entire telescope is 35 feet tall, 900 pounds, and he hopes to tour it in parks. As a hand-turned Dobsonian the telescope lacks the photographic capacity and tracking required for professional astronomy but the views must be breathtaking." (Are there other compelling candidates out there for "largest amateur telescope ever"? The 71" scope listed by nitesky.org appears to be dormant.)

alphadogg writes "The equipment is big and expensive, with the research costs at almost $500,000. But by just using retail components, Chinese professor Chi Nan has built her own Li-Fi wireless system that can use LED lights to send and receive Internet data. "I bought the lights from Taobao," she said, referring to the Chinese e-commerce site. The professor from Fudan University showed off the technology on Tuesday at the China International Industry Fair in Shanghai. Unlike traditional Wi-Fi routers that use radio signals, Chi's system relies on light to send and receive data wirelessly. Others scientists, especially in the U.K., have also been researching the technology, and dubbed it "Li-Fi". But rather than develop specialized hardware, Chi bought off-the-shelf retail parts to create her system."

First time accepted submitter neapolitan writes "PBS has a report on the difficulties of tracking the complications arising from surgical robotic systems, particularly the Da Vinci robotic surgery apparatus. The original study (paywall) notes that there is a large lag in filing reports, and some are not reported at all. It is difficult to assess the continued outcomes and safety without accurate reporting data."

slew writes "Although the robot technically cheats because it watches your hand and can recognize what shape you are intending to make and beat it before you even know what is happening. Apparently it takes about 60ms for you to shape your hand, but the robot can recognize the shape before it is completed, and only takes 20ms to counter your shape so the results appear to the human opponent to be virtually simultaneous. I wonder how difficult it would be to add lizard and spock to the mix.... ;^)."

angry tapir writes "A group of Microsoft researchers believe that using fuel cells to power data centers could potentially result in an 'over 20% reduction in costs using conservative projections', cutting infrastructure and power input costs. In addition, using fuel cells would likely result in a smaller carbon footprint for data centers. The researchers looked at the potential of using fuel cells at the rack level to power servers in data centers — although they note there is a long way to go before this could become a reality (not least of the small worldwide production level of fuel cells)."

An anonymous reader writes in with some exciting news if you are a storage array manufacturer with a lot of money to spend on hard drives."HGST Monday announced that it's now shipping a helium-filled, 3.5-in hard disk drive with 50% more capacity than the current industry leading 4TB drives. The new drive uses 23% less power and is 38% lighter than the 4TB drives. Without changing the height, the new 6TB Ultrastar He6 enterprise-class hard drive crams seven disk platters into what was a five disk-platter, 4TB Ultrastar drive."

angry tapir writes "A Kickstarter project is aiming to bring an inexpensive 9-inch portable monitor to the popular US$25 Raspberry Pi PC, which comes without a keyboard, mouse or monitor. The "HDMIPi" will include an LCD panel that will show images at a resolution of 1280 x 800 pixels. Computers can be hooked up to the monitor via an HDMI controller board that can be wired to the LCD. The display is being made by Raspi.TV and Cyntech."

MojoKid writes "Microsoft has several valid reasons why you should upgrade to Windows 8.1, which is free if you already own Windows 8. However, there's a known issue that might give some gamers pause before clicking through in the Windows Store. There have been complaints of mouse problems after applying the Windows 8.1 update, most of which have been related to lag in video games, though Microsoft confirmed there are other potential quirks. Acknowledging the problem, Microsoft says it's also actively investigating the issues and working on a patch."

An anonymous reader writes "Intel shipped open-source Broadwell graphics driver support for Linux this weekend. While building upon the existing Intel Linux GPU driver, the kernel driver changes are significant in size for Broadwell. Code comments from Intel indicate that these processors shipping in 2014 will have "some of the biggest changes we've seen on the execution and memory management side of the GPU" and "dwarf any other silicon iteration during my tenure, and certainly can compete with the likes of the gen3->gen4 changes." Come next year, Intel may now be able to better take on AMD and NVIDIA discrete graphics solutions."

First time accepted submitter renzema writes "I'm looking for a way to do near-site backups — backups that are not on my physical property, but with a hard drive still accessible should I need to do a restore (let's face it — this is where cloud backup services are really weak — 1 TB at 3-4mb downloads just doesn't cut it). I've tried crashplan, but that requires that someone has a computer on all the time and they don't ship hard drives to Sweden. What I want is to be able to back up my Windows and Mac to both a local disk and to a disk that I own that is not on site. I don't want a computer running 24x7 to support this — just a router or NAS. I would even be happy with a local disk that is somehow mirrored to a remote location. I haven't found anything out there that makes this simple. Any ideas?" What, besides "walk over a disk once in a while," would you advise?

codeusirae writes "RAF pilots were left 'blinded' by a barrage of images while flying at speeds of over 1,000 mph when a number of technical glitches hit their high-tech helmets. The visors were supposed to provide the fighter pilots with complete vision and awareness, but problems with the display produced a blurring known as 'green-glow,' meaning they were unable to see clearly.The green glow occurred when a mass of information was displayed on the helmet-mounted display systems, including radar pictures and images from cameras mounted around the aircraft."

New submitter chrisjz writes "What happens when you combine a virtual reality headset and a brainwave reading device? Here's a simulation showing off what's possible with current technology, using the Emotiv EPOC to read a person's brainwaves for movement in a virtual environment. Along with the Oculus Rift, a VR headset, and the Razer Hydra for hand tracking, this demonstrates another alternative to using omni-directional treadmills or full body tracking for movement and interaction in virtual reality. Consumer level brain computer interfaces are still primitive these days, but it doesn't seem too far off that we'll have virtual reality similar to what William Gibson envisioned in his novels or movies such as The Matrix has shown us."

First time accepted submitter Paddy_O'Furniture writes "Four prominent scientists have penned a letter urging those concerned about climate change to support nuclear energy, saying that renewables such as wind and solar will not be sufficient to meet the world's energy needs. Among the authors is James Hansen, a former top NASA scientist, whose 1988 testimony before the United States Congress helped launch discussions of global warming into the mainstream."

An anonymous reader writes "Almost three years ago, I started looking for a cloud storage service. Encryption and the "zero-knowledge" concept were not concerns. Frankly, after two weeks testing services, it boiled down to one service I used for almost 2 years. It was perfect — in the technical sense — because it simply works as advertised and is one of the cheapest for 500GB. But this year, I decided changing that service for another one, that would encrypt my files before leaving my machine. Some of these services call themselves 'zero-knowledge' services, because (as they claim) clear text does not leave your host: they only receive encrypted data — keys or passwords are not sent. I did all testing I could, with the free bit of their services, and then, chose one of them. After a while, when the load got higher (more files, more folders, more GB...), my horror story began. I started experiencing sync problems of all sorts. In fact, I have paid for and tested another service and both had the same issues with sync. Worse, one of them could not even handle restoring files correctly. I had to restore from my local backup more than once and I ended up losing files for real. In your experience, which service (or services) are really able to handle more than a hundred files, in sync within 5+ hosts, without messing up (deleting, renaming, duplicating) files and folders?"

SmartAboutThings writes "The original Surface Pro didn't have quite a good battery life and that's why Microsoft tried to fix this with the Surface Pro. After the Surface Pro 2 has hit general availability, Microsoft has silently pushed out a firmware update which, according to some new battery benchmarks run by Anandtech, made significant improvements to the battery life of the Surface Pro 2. After the new web browsing battery life test it was discovered that the Surface Pro 2 now manages better battery life than the ARM Surface 2, which is pretty impressive. With the firmware update, Microsoft was targeting over 8 hours, and AnadTech's benchmarks show Microsoft has succeeded, registering a 25% increase in battery life over the no-firmware version. The unpatched Surface Pro 2 lasted for 6.68 hours while with the firmware update installed, its battery life increased to 8.33 hours. The video playback test involved playing a movie until the battery died, and here, albeit smaller, improvements with the battery life have also been noticed: 7.73 hours compared to 6.65 hours."

An anonymous reader writes "The latest device in the OpenPhoenux open hardware family is the Neo900, the first true successor to the Nokia N900. The Neo900 is a joint project of the Openmoko veteran Jörg Reisenweber and the creators of the GTA04/Letux2804 open hardware smartphone at Golden Delicious Computers. Furthermore, it is supported by the N900 Maemo5/Fremantle community, the Openmoko community and the OpenPhoenux community, who are working together to get closer to their common goal of providing an open hardware smartphone, which is able to run 100% free and open source software, while being independet of any big hardware manufacturer." So far, their Indiegogo campaign has raised more than half of the €25,000 they're seeking.

mdsolar writes "An Arizona utility commissioner is asking for all the key players in a debate over a solar energy policy in the state to reveal any additional secret funding of nonprofits or public relations campaigns. The probe comes after Arizona Public Service, the state's largest utility, admitted last week that it had been secretly contributing to outside nonprofits running negative ads against solar power. As The Huffington Post reported Friday, APS recently admitted that it had lied for months about paying the 60 Plus Association, a national conservative organization backed by the Koch brothers, to run ads against current solar net-metering policy. APS is currently pushing the Arizona Corporation Commission to roll back the policy, which allows homeowners and businesses with rooftop solar energy systems to make money by selling excess energy back to the grid. Solar proponents say that the policy has facilitated a solar boom in the state, and that changing it could have a huge negative impact on future growth."

szotz writes "Keeping up the pace of Moore's Law is hard, but you wouldn't know it from the way chipmakers name their technology. The semiconductor industry's names for chip generations (Intel's 22nm, TSMC's 28nm, etc) have very little to do with actual physical sizes, says IEEE Spectrum. And the disconnect is only getting bigger. For the first time, the "pay us to make your chip" foundries are offering a new process (with a smaller-sounding name) that will produce chips that are no denser than their forbears. The move is not a popular one."

itwbennett writes "This brings to mind an earlier Slashdot discussion about whether we've hit the limit on screen resolution improvements on handheld devices. But this time, the question revolves around ever-faster graphics processing units (GPUs) and the resolution limits of desktop monitors. ITworld's Andy Patrizio frames the problem like this: 'Desktop monitors (I'm not talking laptops except for the high-end laptops) tend to vary in size from 20 to 24 inches for mainstream/standard monitors, and 27 to 30 inches for the high end. One thing they all have in common is the resolution. They have pretty much standardized on 1920x1080. That's because 1920x1080 is the resolution for HDTV, and it fits 20 to 24-inch monitors well. Here's the thing: at that resolution, these new GPUs are so powerful you get no major, appreciable gain over the older generation.' Or as Chris Angelini, editorial director for Tom's Hardware Guide, put it, 'The current high-end of GPUs gives you as much as you'd need for an enjoyable experience. Beyond that and it's not like you will get nothing, it's just that you will notice less benefit.'"