Follow Slashdot stories on Twitter

 



Forgot your password?
typodupeerror
×
Communications

Submission + - High Volume Role Based Email

kjh writes: "I need an email system to manage a millions of large email messages spread across a very small number of role-based mailboxes. I need a programmatic (e.g., python, perl, etc.) interface to support message processing. I need a secure multi-user mail user agent model. Most email systems are designed for large numbers of small messages spread across large numbers of individual mailboxes for use by single-user mail user agents. The underlying storage systems are generally too inefficient for use with high volume role-based accounts. Certainly I'm not the only person who could use something like this. What are other people using? Are there open source projects working in this space? I'm not finding much. Slashdot doesn't even have an Email topic."
Space

Submission + - Relativity mod may explain Pioneer anomaly (arxivblog.com)

KentuckyFC writes: "The Pioneer anomaly is the well known deceleration of the Pioneer spacecraft as they head out of the solar system that cannot be explained by the Sun's gravity. Numerous explanations have been put forward including some controversial modifications to Einstein's general theory of relativity. What is less well known is that there is a periodic component to the anomaly. The team at the NASA's Jet Propulsion Lab who have been collecting the data say that it's unlikely that this variation is from the spacecraft. Instead, they think it's probably the result of something at our end such as a tiny variation in Earth's orbit. But now a team that has carried out the most detailed analysis yet says the periodic component of the Pioneer anomaly is compatible with some of the modifications suggested to general relativity. That's an extraordinary claim that's worth treating with caution. But it may just be possible that the Pioneer anomaly is the first evidence of physics beyond Einstein's version of general relativity (abstract)."
Mars

Submission + - Beamformer for Mars video link wins scientist gong

Da Massive writes: The astronauts from NASA's planned manned mission to Mars will be able to send back a 'live' video feed thanks to technology developed by the Australian research organization, the CSIRO. CSIRO research scientist Dr John Bunton is to receive a NASA Space Act Board Award for conceiving a design for the technology which will allow this to happen. Bunton's solution, the Deep Space Array Based Network Beamformer, will divide the video signal data into narrow channels. Each will be transported to beamformer boards, which can easily recombine each data-stream into a single broadband signal.
Biotech

Where To Draw the Line With Embryo Selection? 727

Tjeerd writes "There is currently a discussion going on in the Netherlands about embryo selection. The process means that when using in vitro fertilization, you can check what kind of genetic defects will definitely become activated during life. When embryos with those defects are identified, they can be avoided or destroyed. The next step the government is considering is to make it possible to select against genetic defects which might become active in life, such as breast and colon cancer. Of course, this is a very difficult discussion; where do you start, and where do you end? People are worrying that there is no real limit, and that you could potentially check for every genetic defect. I think if you're in a situation where you or your family have genetic defects, you surely want to check whether your children would have them too. What does the Slashdot community think about this?"
Google

Blogger Launches 'Google Bomb' At McCain 545

hhavensteincw writes "A liberal blogger has launched a 'Google bomb' project aimed at boosting Google search results for nine news articles showing Sen. John McCain in a negative light. The Computerworld article notes: 'Chris Bowers, managing editor of the progressive blog OpenLeft, is launching the Google bombs by encouraging bloggers to embed Web links to the nine news stories about McCain in their blogs, which helps raise their ranking in Google search results. Bowers is reprising a similar Google bombing effort he undertook in 2006 against 52 different congressional candidates. "Obviously, it is manipulating, but search engines are not public forums and unless you act to use them for your own benefit, your opponent's information is going to get out there," Bowers said.'"
Biotech

A 30-Picowatt Processor For Sensors 93

Roland Piquepaille writes "University of Michigan (U-M) researchers have developed an ultra low power microchip which 'uses 30,000 times less power in sleep mode and 10 times less in active mode than comparable chips now on the market.' It only consumes 30 picowatts in sleep mode, which means that a simple watch battery could power the chip for more than 200 years. Of course, this is not a processor for your next computer. It is designed for sensor-based devices such as medical implants, environment monitors or surveillance equipment. However, the design is very clever." Roland's blog has some more information, including a die picture of the chip, known as the Phoenix.
Space

NASA Plans Probe to the Sun 352

FudRucker writes "For more than 400 years, astronomers have studied the sun from afar. Now NASA has decided to go there. 'We are going to visit a living, breathing star for the first time,' says program scientist Lika Guhathakurta of NASA Headquarters. 'This is an unexplored region of the solar system and the possibilities for discovery are off the charts.'"
Communications

VoIP As a Solution To Rural Broadband 149

boyko.at.netqos recommends his article up at Network Performance Daily, which notes the recent reports that up to 30% of households do not have a landline telephone, preferring a VoIP or cell-phone based solution. What to do with the miles of last-mile phone line infrastructure already in place in almost all the homes across the country? Maybe there's a solution to rural broadband by using the high-reliability frequencies reserved for voice purely for data — and using VoIP to make phone calls. From the article: "Repurposing the broadband of 0-25kHz would result in... speeds of around 14.4 kBytes/s (or 115.9 kbits/s) upload and 28.8 kBytes/s (231.3 kbits/s) download. That's not much of a speed boost. Still, if you've been plodding along on a '56.6k' modem, at speeds of 7.2kBytes/s, this would be like an oasis in the desert. And what about those phone calls? Well, if you make the same phone calls with VoIP that you were with the standard 0-4kHz landline, it would only take about 20.8kbits/s using the G.723.1 codec — that still leaves you with 80% of your broadband capacity when on the phone — and 100% of your broadband when you're off it." Only the US FCC calls 231K "broadband," but as noted it does beat dialup.
GNU is Not Unix

RMS Steps Down As Emacs Maintainer 321

sigzero writes "Short but sweet: RMS is stepping down as Emacs Maintainer: 'From: Richard Stallman, Subject: Re: Looking for a new Emacs maintainer or team, Date: Fri, 22 Feb 2008 17:57:22 -0500 Stefan and Yidong offered to take over, so I am willing to hand over Emacs development to them."
Microsoft

Microsoft to Give Away Developer Tools to Students 555

beuges writes "The Associated Press is reporting that Microsoft will make full versions of their development tools available to students. "The Redmond-based software maker said late Monday it will let students download Visual Studio Professional Edition, a software development environment; Expression Studio, which includes graphic design and Web site and hybrid Web-desktop programming tools; and XNA Game Studio 2.0, a video game development program. Gates said students will want to try Microsoft's tools because they're more powerful than the open-source combination of Linux-based operating systems, the Apache Web server, the MySQL database and the PHP scripting language used to make complex Web sites. But Gates said giving away Microsoft software isn't intended to turn students against open source software entirely. Rather, he hopes it will just add one more tool to their belt.""
Businesses

eBay to Drop Negative Feedback on Buyers 505

Trip Ericson writes "ArsTechnica is reporting that eBay plans to drop negative feedback on buyers. It's just one of a number of changes eBay will be making in the near future. 'eBay's data shows that sellers are eight times more likely to retaliate in kind against negative feedback, a figure that has grown dramatically over the years. In an attempt to mollify sellers, eBay will initiate a handful of seller protections to offset the inability to speak ill of a buyer. Negative and neutral feedback will be removed if a buyer bails on a transaction or if the buyer has his or her account suspended. Buyers will have less time to leave feedback, and won't be able to do so until three days after the auction ends. eBay is also pledging to step up monitoring and enforcement of its policies around buyers who behave very badly.'"
Microsoft

Microsoft 'Open Value Subscription' is None of the Above 202

daveofdoom writes "This week Microsoft launched an SMB program that contains the words 'open', 'value' and 'subscription', none of which are common to Microsoft products, culture, or marketing. Digging in a bit I found myself confused not only by what the program portends to be but why it would be called 'Open Value Subscription' unless they were hoping to leverage buzzwords and concepts related to open source and SaaS (software as a service). It's such lame and dishonest branding the marketing group should be ashamed."
Security

The 5 Coolest Hacks of '07 145

ancientribe writes "Nothing was sacred to hackers in '07 — not cars, not truckers, and not even the stock exchange. Dark Reading reviews five hacks that went after everyday things we take for granted even more than our PC's — our car navigation system, a trucker's freight, WiFi connections, iPhone, and (gulp) the electronic financial trading systems that record our stock purchases and other online transactions."
Robotics

i-Snake, a New Robotic Surgeon 58

Roland Piquepaille noted coverage of the iSnake Robotic Surgeon which is basically a super flexible robot that can travel through blood vessels and repair the heart. Of course the article isn't exactly clear on what happens if they gain control of the city's sewage system and take over.
Security

Submission + - Domains May Disappear After Search 1

Ponca City, We Love You writes: "A perfect domain name pops into your mind, a quick check at your registrar reveals that the domain is available, you put off the registration a few minutes and when you come back to register the domain, it's taken by someone else. How much time has elapsed between the search and the attempted registration — in one case, less than 90 seconds. Daily Domainer has an interesting story alleging that there may be a leak that allows domain tasters to intercept, analyze and register your domain ideas in minutes. "Every time you do a whois search with any service, you run a risk of losing your domain," says one industry insider. ICANN's Security and Stability Advisory Committee (SSAC ) has not been able to find hard evidence of Domain Name Front Running but they have issued an advisory (pdf) for people to come forward with hard evidence it is happening. Here is how domain name research theft crimes can occur and some tips to avoiding being a victim."

Slashdot Top Deals

"Here's something to think about: How come you never see a headline like `Psychic Wins Lottery.'" -- Comedian Jay Leno

Working...