Follow Slashdot blog updates by subscribing to our blog RSS feed

 



Forgot your password?
typodupeerror
×
Science

Submission + - A New Methode to Solve Linear Equations (wavewatching.net)

quax writes: Solving linear equations is one of the most common mathematical problems, and it is a fairly easy one that everybody learns to work in school. Surprisingly, a new algorithm has been found that improves over established methods within the domain of finite fields.

This algorithm is poised to find widespread use in applications as diverse as cryptography and quantum error correction.

The article provides links to the original paper and illustrates the concept of finite fields.

Desktops (Apple)

Submission + - How to run OSX in a virtual machine? (osx86project.org)

tonyt3 writes: "It is straightforward to run Windows or Linux on a Mac, because there are several ways — and mostwork well. There seems to be no similar way to do the reverse: run Mac OSX on a virtual machine under Windows or Linux. Of course there is the Hackintosh series of methods, and some people have used VirtualBox. But these seem to require serious hacking of the system, which is very different from running Windows via Parallels. Is this a technical problem? or is it a legal problem? Any suggestions?
Many thanks,
tony"

Security

Submission + - 35% Of Americans Would Wear "Electric Shock Bracelet" in Order to Fly (infowars.com) 1

dryriver writes: Infowars.com reports: 'A survey commissioned by Infowars and conducted by Harris Interactive has found that 35% of American adults would be willing to wear an electric shock bracelet in order to fly, another startling example of how many Americans are willing to give up their rights in the name of safety. The idea of mandating travelers to wear an electric shock bracelet sounds like something out of a dystopian sci-fi movie, but the proposal was seriously considered and very nearly implemented by the Department of Homeland Security back in 2008. As the linked Youtube video highlights, not only would the bracelets have been used to deliver incapacitating electric shocks to suspected terrorists, they would also have contained tracking technology to spy on the wearer.
Android

Submission + - Why You Can't Build Your Own Smarthphone: Patents (itworld.com)

jfruh writes: "In the mid-00s, more and more people started learning about Android, a Linux-based smartphone OS. Open source advocates in particular thought they could be seeing the mobile equivalent of Linux — something you could download, tinker with, and sell. Today, though, the Android market is dominated by Google and the usual suspects in the handset business. The reason nobody's been able to launch an Android empire from the garage is fairly straightforward: the average smartphone is covered by over 250,000 patents."
Firefox

Submission + - Happy 8th Birthday Firefox! (benjaminkerensa.com)

An anonymous reader writes: Mozillian Benjamin Kerensa calls fellow Firefox Users and Mozillians to Celebrate Firefox's 8th Birthday.

Comment Re:Oh Please! (Score 2) 150

The editor wars came to a standstill in the 90's! Why did you have to break the ceasefire?
But if we're flaming anyway, I would like to remind you that Emacs Makes Any Computer Slow and that it is a very nice operating system; it just lacks a text editor (but it's still infinitely better than nano or pico or notepad).

And real men use ed!

Businesses

Submission + - Apple Said to Be Exploring Switch From Intel for Mac (bloomberg.com)

concealment writes: "Apple Inc. (AAPL) is exploring ways to replace Intel Corp. (INTC) processors in its Mac personal computers with a version of the chip technology it uses in the iPhone and iPad, according to people familiar with the company’s research.

Apple engineers have grown confident that the chip designs used for its mobile devices will one day be powerful enough to run its desktops and laptops, said three people with knowledge of the work, who asked to remain anonymous because the plans are confidential. Apple began using Intel chips for Macs in 2005."

Security

Submission + - Electronic Voting Data Security in Ohio (freepress.org)

jvaigl writes: The news about an uncertified software update in almost half of Ohio's counties is making the rounds. The scariest part isn't that software was modified under a contract where assumption #1 was that the legally required certification was not to be performed. It's that the contract calls for this standalone program (running on the computer in each county used to upload the data to the state computer) to modify the output format from XML to .CSV. Yes, in Ohio, we're storing the tabulated results from each county in a plain text ascii file on a Windows computer before someone clicks the upload button. Anyone who knows enough to fire up notepad can edit which ever results they want in any race they choose, apparently. See the last couple pages in the contract for the data format. Who says we don't need federal standards for data interchange and system security in voting software?
Supercomputing

Submission + - how we built a supercomputer in 24hrs (youtube.com) 1

An anonymous reader writes: Time lapse video of students and postdocs at the University of Zurich constructing the zBox4 supercomputer. The machine has a theoretical compute capacity of ~1% of the human brain and will be used for simulating the formation of stars, planets and galaxies.
Security

Submission + - Building the Ultimate Safe House

Hugh Pickens writes writes: "Candace Jackson writes that an increasing number of home builders and buyers are looking for a new kind of security: homes equipped to handle everything from hurricanes, tornados and hybrid superstorms like this week's Sandy, to man-made threats ranging from home invasion to nuclear war and fueling the rise of these often-fortresslike homes are new technologies and building materials—which builders say will ultimately be used on a more widespread basis in storm- and earthquake-threatened areas. For example, Alys Beach, a 158-acre luxury seaside community on Florida's Gulf Coast, have earned the designation of Fortified...for safer living® homes and are designed to withstand strong winds. The roofs have two coats of limestone and exterior walls have 8 inches of concrete, reinforced every 32 inches for "bunkerlike" safety, according to marketing materials. Other builders are producing highly hurricane-proof residences that are circular in shape with "radial engineering" wherein roof and floor trusses link back to the home's center like spokes on a wheel, helping to dissipate gale forces around the structure with Deltec, a North Carolina–based builder, saying it has never lost a circular home to hurricanes in over 40 years of construction. But Doug Buck says some "extreme" building techniques don't make financial sense. "You get to a point of diminishing returns," says Buck. "You're going to spend so much that honestly, it would make more sense to let it blow down and rebuild it.""
Open Source

Submission + - Navigating the Vast Ocean of Open Source (slashdot.org)

Nerval's Lobster writes: "Open source is no longer relegated to the discount software vendor that serves cash strapped startups. In enterprise software development these days, open source is not only immensely valuable, but increasingly crucial to stay competitive in releasing high quality software at regular intervals in a world where technology is changing so fast and every edge matters.

Today, rolling your own logging package instead of using something like log4j is as silly as trying to build your own web server instead of using Apache httpd was 10 years ago. Still, there are other components like guava that are less well known, but are currently making a name for themselves as libraries that can take the solution you are building to the next level of sophistication and quality. Just knowing they exist—and knowing where they fit—can help you design and build better software at a lower cost.

In addition to conducting a traditional build versus buy analysis, it’s critical to think about the maintenance and support story surrounding an open source package. Here are some things to consider and questions to ponder."

Mars

Submission + - NASA Planetary Science Budget Cuts Sparks New Humans vs. Robots Debate (yahoo.com)

MarkWhittington writes: "The recent budget cuts imposed by the Obama administration in NASA's planetary science budget has sparked a new humans vs. robots debate, but with a twist. Some are now suggesting, since humans make better field geologists than robots, that a robotic sample return mission should be bypassed entirely in favor of a human Mars mission"

Slashdot Top Deals

The opposite of a correct statement is a false statement. But the opposite of a profound truth may well be another profound truth. -- Niels Bohr

Working...