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Media

BBC Lowers HDTV Bitrate; Users Notice 412

aws910 writes "According to an article on the BBC website, BBC HD lowered the bitrate of their broadcasts by almost 50% and are surprised that users noticed. From the article: 'The replacement encoders work at a bitrate of 9.7Mbps (megabits per second), while their predecessors worked at 16Mbps, the standard for other broadcasters.' The BBC claims 'We did extensive testing on the new encoders which showed that they could produce pictures at the same or even better quality than the old encoders ...' I got a good laugh off of this, but is it really possible to get better quality from a lower bitrate?"
Space

Herschel's First Science Results, Eagle Nebula 91

davecl writes "Over the next three days, many new science results will come out from Herschel. The first of these, a view deep inside the stellar nursery of the Eagle Nebula, finds a huge amount of activity, revealing new stars and filaments of dust that could not have been detected by previous telescopes. Also open today is OSHI, the online showcase of Herschel images where all the new science images will be found. Herschel news also available on the Herschel Mission Blog."
NASA

New Hubble Ultra Deep Field In Infrared 95

Hynee writes "Just in time for Christmas, HubbleSite has released a Hubble Ultra Deep Field redux. The original was in visible light; this version, five years on, is in infrared (1.05, 1.25 and 1.6 um). The observation is in support of the upcoming JWST, which will observe exclusively in infrared, but the newly installed WFC3 does seem to provide some extra resolution over the 2004 visible observations with WFC2."
Media

Best PC DVR Software, For Any Platform? 536

jshamacher writes "I've used MythTV for several years (first on Slackware, now via Mythbuntu) and it's good. But not great — I have a list of annoyances as long as my arm. For example, even 0.22 still has problems playing many DVDs and I frequently have to fall back on Xine. Since upgrading to new hardware, I've had issues with sound dropping out; these problems only occur for Myth, not for anything else. So now I'm trying out alternatives. Freevo seemed promising when I tried it a few months ago but it had its own issues. I'm also increasingly getting pressure from my family to get things like NetFlix streaming working on this machine. This seems to imply migrating to a Windows-based solution. I threw XP on it and tried MediaPortal but could never get that to control my Motorola cable box via the IR blaster. So my questions to you: What DVR software do you use? Are you happy with it? What don't you like? Are there any packages out there that 'just work' as media hubs and for time-shifting cable TV?"
Bug

Microsoft Investigates Windows 7 "Black Screen of Death" 351

duguk writes "Microsoft has confirmed that it is investigating a problem described as the 'black screen of death,' which affects Windows 7 — and reports suggest it affects Vista and XP, too. The firm said it was looking into reports that suggest its latest security update, released on Tuesday 25 November, caused the problem. The error means that users of Windows 7 and earlier operating systems see a totally black screen after logging on to the system." Update: 12/01 22:35 GMT by KD : Microsoft now says that its November Windows updates are not causing the BlackSOD: "The company has found those reports to be inaccurate and our comprehensive investigation has shown that none of the recently released updates are related to the behavior described in the reports."
Science

LHC Reaches Over One Trillion Electron Volts 305

The LHC has become the world's highest-energy particle accelerator, weighing in at over one trillion electron volts. "Until now the LHC had been operating at a relatively low energy of 450 billion electron volts. On Sunday, engineers increased the energy of this 'pilot beam,' reaching 1.18 trillion electron volts at 2344 GMT. The previous record of 0.98 trillion electron volts has been held by the Tevatron accelerator since 2001. The LHC is eventually expected to operate at some seven trillion electron volts."
NASA

STEREO Satellites Spot Solar Flare Tsunami 89

westtxfun writes "The STEREO satellites recently confirmed the existence of solar mega-tsunamis when they captured height data after a sunspot recently erupted. The scale of this tsunami literally dwarfs the Earth's diameter — it was 62,000 miles high and raced across the surface at 560,000 mph! STEREO A and B orbit 90 degrees apart and luckily, one was overhead while the other saw the eruption on the limb. This gave NASA scientists enough data to confirm the tsunami wasn't a shadow, solving a modern solar mystery. The images are simply stunning, to boot."
PlayStation (Games)

US Air Force Buying Another 2,200 PS3s 144

bleedingpegasus sends word that the US Air Force will be grabbing up 2,200 new PlayStation 3 consoles for research into supercomputing. They already have a cluster made from 336 of the old-style (non-Slim) consoles, which they've used for a variety of purposes, including "processing multiple radar images into higher resolution composite images (known as synthetic aperture radar image formation), high-def video processing, and 'neuromorphic computing.'" According to the Justification Review Document (DOC), "Once the hardware configuration is implemented, software code will be developed in-house for cluster implementation utilizing a Linux-based operating software."
Graphics

Nvidia's DX11 GF100 Graphics Processor Detailed 220

J. Dzhugashvili writes "While it's played up the general-purpose computing prowess of its next-gen GPU architecture, Nvidia has talked little about Fermi's graphics capabilities — to the extent that some accuse Nvidia of turning its back on PC gaming. Not so, says The Tech Report in a detailed architectural overview of the GF100, the first Fermi-based consumer graphics processor. Alongside a wealth of technical information, the article includes enlightening estimates and direct comparisons with AMD's Radeon HD 5870. The GF100 will be up to twice as fast as the GeForce GTX 285, the author reckons, but the gap with the Radeon HD 5870 should be 'a bit more slender.' Still, Nvidia may have the fastest consumer GPU ever on its hands — and far from forsaking games, Fermi has been built as a graphics processor first and foremost."
Programming

We Really Don't Know Jack About Maintenance 260

davecb writes "The ACM has been kind enough to print Paul Stachour's and my 'jack' article about Software Maintenance. Paul first pointed out back in 1984 that we and our managers were being foolish — when we were still running Unix V7 — and if anything it's been getting worse. Turns out maintenance has been a 'solved problem in computer science' since at least then, and we're just beginning to rediscover it."
Space

Leonid Meteor Shower Peaks Early Tuesday Morning 87

GringoChapin writes in with coverage from Space.com on the Leonid meteor shower, adding "Folks from the United States will want to start watching at 0100 Pacific, 0400 Eastern, and those in Europe from 0100 local time until dawn." "One of the best annual meteor showers will peak in the pre-dawn hours Tuesday, and for some skywatchers the show could be quite impressive. The best seats are in Asia, but North American observers should be treated to an above average performance of the Leonid meteor shower, weather permitting." Sky and Telescope's coverage is excellent as usual, and they also have tips for beginning and advanced meteor observers.
Displays

Are There Affordable Low-DPI Large-Screen LCD Monitors? 549

jtownatpunk.net writes "As time goes by, I find myself supporting a greater number of users moving through their 40s and into their 50s (and beyond!). I notice more and more of them are lowering the resolution of their displays in order to 'make it bigger.' That was fine in the CRT days, but, quite frankly, LCDs look like crap when they're not displaying their native resolution. My solution at home is to hook my computer up to a big, honkin' 1080p HDTV, but that's a bit of a political risk in an office environment. 'Why does Bill get a freakin' big screen TV?!' Plus, it's a waste to be paying for the extra inputs (component, s-video, composite), remote, tuner, etc. that will never be used. And a 37-47" display is a bit large for a desk. So here's my question: Is there a source for 24-27" monitors running at 1366x768 that are affordable and don't have all of the 'TV' stuff? Or is my only choice to just buy 27" HDTVs and admonish the users not to watch TV? (And, no, just giving them big CRTs is not an option. Most people would rather stare at a fuzzy LCD than 'go back' to a CRT.)"

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