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Linux

Happy Birthday, Linus 376

Posted by CmdrTaco from the slow-news-day dept.
Glyn Moody writes "Today is the birthday of Linus. Just under 19 years ago, on the first day the shops in Helsinki were open after the holidays, Linus rushed out and spent all his Christmas and birthday money on his first PC: a DX33 80386, with 4 Megs of RAM, no co-processor, and a 40 Megabyte hard disc. Today, the kernel he wrote on that system powers 90% of the fastest supercomputers, and is starting to find its way into more and more smartphones — not to mention everything in between. What would the world look like had he spent his money on something else?"
NASA

Launching Frequently Key To NASA Success 145

Posted by CmdrTaco from the more-is-better dept.
teeks99 writes "Even NASA could benefit from the 'Launch Often' idea that is frequently referred to in the software development community. However, in NASA's case, the 'launch' is a bit more literal. Edward Lu, writing in the New York Times, points out that by lowering the consequences of launch failure, and making frequent launches available to engineers, NASA could open up a new wave of innovation in space exploration. If there were weekly launches of a rocket, there would be many opportunities for new ideas to be tried out in communications, remote sensing, orbital debris mitigation, robotic exploration, and even in developing technology for human spaceflight. Another benefit would be that the rockets would be well understood, which would improve reliability."
Social Networks

We're In the Midst of a Literacy Revolution 431

Posted by kdawson from the write-on dept.
Mike Sauter sends in a piece from Wired profiling research by Andrea Lunsford, a professor of writing and rhetoric at Stanford, from which she concludes that we don't need to worry about computers and the Internet causing a decline in general literacy. "[Lunsford] has organized a mammoth project called the Stanford Study of Writing to scrutinize college students' prose. From 2001 to 2006, she collected 14,672 student writing samples — everything from in-class assignments, formal essays, and journal entries to emails, blog posts, and chat sessions. Her conclusions are stirring. 'I think we're in the midst of a literacy revolution the likes of which we haven't seen since Greek civilization,' she says. For Lunsford, technology isn't killing our ability to write. It's reviving it — and pushing our literacy in bold new directions."
Education

Tomorrow's Science Heroes? 799

Posted by kdawson from the mister-wizard-reincarnated dept.
An anonymous reader writes "As a kid I was (and still am) heavily influenced by Carl Sagan, and a little later by Stephen Hawking. Now as I have started a family with two kids, currently age 5 and 2, I am wondering who out there is popularizing science. Currently, my wife and I can get the kids excited about the world around them, but I'd like to find someone inspiring from outside the family as they get older. Sure, we'll always have 'Cosmos,' but are there any contemporaries who are trying to bring science into the public view in such a fun and intriguing way? Someone the kids can look up to and be inspired by? Where is the next Science Hero?"
Biotech

Human Sperm Produced In the Laboratory 368

Posted by timothy from the that's-not-starting-from-scratch dept.
duh P3rf3ss3r writes "The BBC is carrying a report from a team of researchers at Newcastle University who claim to have developed a the first 'artificial' human sperm from stem cells. The research, reported in the journal Stem Cells and Development, involved selecting meristematic germ cells from a human embryonic stem cell culture and inducing meiosis, thus producing a haploid gamete. The authors claim that the resulting sperm are fully formed, mature, human sperm cells but the announcement has been greeted with mixed reaction from colleagues who claim the procedure is ethically questionable and that the gametes produced are of inferior levels of maturation."
The Courts

Madoff Sentenced To 150 Years 602

Posted by kdawson from the bye-bye dept.
selven was one of several readers to send in the news that Bernie Madoff was sentenced to 150 years in prison. "Bernard Madoff's victims gasped and cheered when he was sentenced to 150 years in prison, but they walked away knowing little more about how he carried out the biggest robbery in Wall Street history. In one of the most dramatic courtroom conclusions to a corporate fraud case, the 71-year-old swindler was unemotional as he was berated by distraught investors during the 90-minute proceeding. Many former clients had hoped he would shed more light on his crime and explain why he victimized so many for so long. But he did not. Madoff called his crime 'an error of judgment' and his 'failure,' reiterating previous statements that he alone was responsible for the $65 billion investment fraud. His victims said they did not hear much new from Madoff in his five-minute statement. They also said they did not believe anything he said. As he handed down the maximum penalty allowed, US District Judge Denny Chin... [said], 'I simply do not get the sense that Mr. Madoff has done all that he could or told all that he knows.'"
Image

Cows That Burp Less Methane to Be Bred Screenshot-sm 366

Posted by samzenpus from the belching-bovines dept.
Canadian scientists are breeding a type of cow that burps less, in an attempt to reduce greenhouse gases. Cows are responsible for almost 75% of total methane emissions, mostly coming from burps. Stephen Moore, professor of agricultural, food and nutritional science at the University of Alberta, hopes the refined bovines will produce 25 per cent less methane. Nancy Hirshberg, spokesman for Stonyfield Farm says, "If every US dairy farmer reduced emissions by 12 per cent it would be equal to about half a million cars being taken off the road."

OLPC Set To Dump x86 For Arm Chips In XO 2 274

Posted by timothy from the just-make-it-faster dept.
angry tapir writes with this excerpt from Good Gear Guide: "One Laptop Per Child is set to dump x86 processors, instead opting to put low-power Arm-based processors in its next-generation XO-2 laptop with the aim of improving battery life. The nonprofit is 'almost' committed to putting the Arm-based chip in the next-generation XO-2 laptop, which is due for release in 18 months, according to Nicholas Negroponte, chairman of OLPC. The XO-1 laptop currently ships with Advanced Micro Devices' aging Geode chip, which is based on an x86 design."
Programming

Null References, the Billion Dollar Mistake 612

Posted by timothy from the these-are-just-rough-numbers dept.
jonr writes "'I call it my billion-dollar mistake. It was the invention of the null reference in 1965. At that time, I was designing the first comprehensive type system for references in an object oriented language (ALGOL W). My goal was to ensure that all use of references should be absolutely safe, with checking performed automatically by the compiler. But I couldn't resist the temptation to put in a null reference, simply because it was so easy to implement. This has led to innumerable errors, vulnerabilities, and system crashes, which have probably caused a billion dollars of pain and damage in the last forty years. In recent years, a number of program analysers like PREfix and PREfast in Microsoft have been used to check references, and give warnings if there is a risk they may be non-null. More recent programming languages like Spec# have introduced declarations for non-null references. This is the solution, which I rejected in 1965.' This is an abstract from Tony Hoare Presentation on QCon. I'm raised on C-style programming languages, and have always used null pointers/references, but I am having trouble of grokking null-reference free language. Is there a good reading out there that explains this?"
Biotech

Human-Animal Hybrids Fail 554

Posted by timothy from the good-help-hard-to-find dept.
SailorSpork writes "Fans of furries and anime-style cat girls will be disappointed by the news that attempts to create human animal hybrids have failed. Experiments by British scientists to create embryonic stem cells by putting human DNA into cow or rabbit eggs had raised ethical concerns, but the question of how we would treat sub-humans will have to wait until we actually figure out how to make them."
Security

Oops! Missed One Fix — Windows Attacks Under Way 292

Posted by timothy from the don't-blame-microsoft-alone dept.
CWmike writes "Microsoft says attackers are now exploiting a critical Windows bug that it didn't get around to fixing in its biggest batch of security patches in more than five years, issued yesterday. Microsoft said that 'limited and targeted' attacks are in progress by hackers exploiting an unpatched vulnerability in the WordPad Text Converter, a tool included with all versions of Windows. If Microsoft patches the WordPad problem on its monthly schedule, the first opportunity for fixing the flaw would be Jan. 9, 2009." Update: 12/10 22:28 GMT by T : OK, there might have been more than one: reader Simon (S2) writes "There is an even more serious flaw ... From SANS: 'There is a 0-day exploit for Internet Explorer circulating in the wild. At this point in time it does not appear to be wildly used, but as the code is publicly available we can expect that this will happen very soon. This is a brand new exploit that is *not* patched with MS08-073 that was released yesterday. I can confirm that the exploit works in a fully patched Windows XP machine. The exploit is a typical heap overflow that appears to be exploiting something in the XML parser.'"

Comment Stability issues are justified (Score 4, Interesting) 134

by mnmn (#25676901) Attached to: Red Hat & AMD Demo Live VM Migration Across CPU Vendors
Declaration: VMware support engineering here, but speaking strictly on my own behalf.

The stability issues are justified if you consider all types of VMs. Windows 2003, default RHEL5 kernels etc use more than the basic set of assembler instructions (disk IO code uses MMX, SSE etc).

We can compile a kernel for strictly 486 CPUs and demonstrate migrations between AMD and Intel using extensive CPU masking: http://kb.vmware.com/kb/1993

We've also known that mismatched CPU stepping makes the VMs unstable. This is because instructions suddenly run faster or slower compared to the front side bus, not all of Linux and Microsoft code has been tested against that. You can happily try it and a lot of our customers succesfully do. Some get BSODs and kernel oops. This is not our fault.

If you virtualize the instructions more (bochs?) you can of course move the VM anywhere including a Linksys router's MIPS chip. At the cost of speed of course.

Lastly, why would we want to keep customers stuck to one CPU vendor? We've software vendors.
GNU is Not Unix

Creative GPLs X-Fi Sound Card Driver Code 369

Posted by timothy from the intelligent-move dept.
An anonymous reader writes "In a move that's a win for the free software community, Creative Labs has decided to release their binary Linux driver for the Creative Sound Blaster X-Fi and X-Fi Titanium sound cards under the GPL license. This is coming after several failed attempts at delivering a working binary driver and years after these sound cards first hit the market."

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