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Comment Re:If they do make a cube... (Score 1) 355

by mathnerd314 (#27935019) Attached to: Ultra-Dense Deuterium Produced

Actually, IIRC, gravitational field inside a solid sphere increases linearly with r for r less than R and drops off with 1/r^2 for r greater than R. In this case the field would be 50% of the field at the surface. I don't know where you got "logarithmic" from.

Of course this is assuming the earth is a perfect sphere of uniform density--if anyone has an even more accurate calculation, feel free to add it too ;)
Power

Three Mile Island Memories 309

Posted by Soulskill from the if-it-ain't-broke,-send-it-through-congress dept.
theodp writes "Thirty years after the partial nuclear core meltdown at Three Mile Island, Robert Cringely describes the terrible TMI user interface, blaming a confluence of bad design decisions — some made by Congress — for making the accident vastly worse. While computers could be used to monitor the reactor, US law prohibited using computers to directly control nuclear power plants — men would do that. So, when the (one) computer noticed a problem, it would set off audible and visual alarms, and send a problem description to a line printer. Simple, except the computer noticed 700 things wrong in the first few minutes of the TMI accident, causing the one audible alarm to ring continuously until it was shut off as useless. The one visual alarm blinked for days, indicating nothing useful. And the print queue was quickly flooded with 700 error reports followed by thousands of updates and corrections, making it almost instantly hours behind. The operators had to guess at what the problem was."
Windows

Draconian DRM Revealed In Windows 7 1127

Posted by kdawson from the just-who-did-you-think-owns-your-machine dept.
TechForensics writes "A few days' testing of Windows 7 has already disclosed some draconian DRM, some of it unrelated to media files. A legitimate copy of Photoshop CS4 stopped functioning after we clobbered a nagging registration screen by replacing a DLL with a hacked version. With regard to media files, the days of capturing an audio program on your PC seem to be over (if the program originated on that PC). The inputs of your sound card are severely degraded in software if the card is also playing an audio program (tested here with Grooveshark). This may be the tip of the iceberg. Being in bed with the RIAA is bad enough, but locking your own files away from you is a tactic so outrageous it may kill the OS for many persons. Many users will not want to experiment with a second sound card or computer just to record from online sources, or boot up under a Linux that supports ntfs-3g just to control their files." Read on for more details of this user's findings.
Privacy

UK Police To Step Up Hacking of Home PCs 595

Posted by kdawson from the must-be-ok-if-the-good-guys-do-it dept.
toomanyairmiles writes "The Times of London reports that the United Kingdom's Home Office has quietly adopted a new plan to allow police across Britain to routinely hack into people's personal computers without a warrant. The move, which follows a decision by the European Union's council of ministers in Brussels, has angered civil liberties groups and opposition MPs. They described it as a sinister extension of the surveillance state that drives 'a coach and horses' through privacy laws."
Operating Systems

Ubuntu Ports To ARM 279

Posted by timothy from the arm-y-of-warmth dept.
nerdyH writes "Canonical will port Ubuntu Desktop Linux to the ARMv7 architecture. The announcement sets the stage for Intel to lose the traditional 'software advantage' that has enabled x86 to shrug off attacks from other architectures for the last 30 years. How long can it be before Microsoft responds with a Windows 7 port? I mean, x86 just can't do 'idle power' like ARM ... Nokia's N810 tablets can standby for several weeks, just like a cell phone, keeping you 'present' on IM, behind IPv4 NAT the whole time. The first Atom MIDs are standing by for 6-7 hours."
Microsoft

Microsoft Pushes Windows To Battle Linux In Africa 248

Posted by timothy from the roll-the-windows-down-if-it-gets-hot dept.
ThousandStars writes "According to the Wall Street Journal, Microsoft has been making a concerted effort to promote Windows in Africa, pushing Windows over Linux in very poor countries that haven't been locked into a single operating system. From the article: 'To that end, it has established a presence in 13 countries, donated Windows for thousands of school computers, and funded programs for entrepreneurs and the young. It also has used aggressive business tactics, some aimed at its biggest threat in the region: Linux ...'"
Biotech

Bees Help Detectives Catch Serial Killers 132

Posted by kdawson from the geographic-profiling dept.
Hugh Pickens writes "The way bumblebees search for food could help detectives hunt down serial killers — because just as bees forage some distance away from their hives, so murderers avoid killing near their homes, says a University of London research team. The researchers' analysis describes how bees create a 'buffer zone' around their hive where they will not forage, to reduce the risk of predators and parasites locating the nest. This behavior pattern is similar to the geographic profile of criminals stalking their victims. 'Most murders happen close to the killer's home, but not in the area directly surrounding a criminal's house, where crimes are less likely to be committed because of the fear of getting caught by someone they know,' says Dr. Nigel Raine. Criminologists will fold this insight into their models using details about crime scenes, robbery locations, abandoned cars, even dead bodies, to hone the search for a suspect."
Medicine

Nanomaterials More Dangerous Than We Think 239

Posted by kdawson from the common-sense dept.
bshell writes "A Canadian panel of leading scientists warns that nanomaterials appearing in a rapidly growing number of products might potentially be able to enter cells and interfere with biological processes. According to a story in the Globe and Mail, the Council of Canadian Academies concluded that 'there are inadequate data to inform quantitative risk assessments on current and emerging nanomaterials... Their small size, the report says, may allow them "to usurp traditional biological protective mechanisms" and, as a result, possibly have "enhanced toxicological effects."' The council is an independent academic advisory group funded by the federal government, but operating at arms-length from Ottawa. The 16-member panel that wrote the new report included some of Canada's leading scientists and top international experts on nanomaterials."
Media

Law Profs File Friend-of-Court Brief Against RIAA 186

Posted by Soulskill from the dissenting-opinions dept.
NewYorkCountryLawyer writes "A group of 10 copyright law professors has filed an amicus curiae ('friend of the court') brief on the side of the defendant in Capitol v. Thomas, agreeing with the judge's recent decision that the $222,000 verdict won by the RIAA appears to be tainted by a 'manifest error of law.' The clear and well-written 14-page brief (PDF) argues that the 'making available' jury instruction, which the RIAA had requested and the judge ultimately accepted, was in fact a 'manifest error of law,' making the point, among others, that an interpretation of a statute should begin with the words of the statute. My only criticism of the brief is that it overstates the authorities relied on by the RIAA, citing cases which never decided the 'making available' issue as cases which had decided it in the RIAA's favor." As it turns out, the MPAA, close ally to the RIAA, has come forth with a more controversial view. They suggest that proof of actual distribution shouldn't be required. From their brief (PDF): "Mandating that proof could thus have the pernicious effect of depriving copyright owners of a practical remedy against massive copyright infringement in many instances."

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