Become a fan of Slashdot on Facebook

 



Forgot your password?
typodupeerror
×

Comment Re:Not to sound like an ass, but... (Score 1) 173

Moreover, the DoAndIfThenElse extension merely extends the "do" syntax with if/then/else clauses; it is syntactic sugar. Empty data declarations are essentially union types unioned over no labels and therefore can have no values except for the bottom value.

References:
http://hackage.haskell.org/trac/haskell-prime/wiki/DoAndIfThenElse
http://hackage.haskell.org/trac/haskell-prime/wiki/EmptyDataDecls

The Military

Iraq Swears By Dowsing Rod Bomb Detector 652

jggimi writes "According to the New York Times, more than fifteen hundred remote sensing devices have been sold to Iraq's Ministry of the Interior, at prices ranging from $16,500 to $60,000 each. The devices are used for bomb and weapon detection at checkpoints, and have no battery or other power source. Sounds great, but according to a retired United States Air Force officer, Lt. Col. Hal Bidlack, they work on the same principle as a Ouija board — the power of suggestion. He described the wand as nothing more than an explosives divining rod. Even though the device has been debunked by the US Military, the US Department of Justice, and even Sandia National Laboratories, the Iraqis are thrilled with the devices. 'Whether it's magic or scientific, what I care about is it detects bombs,' said Maj. Gen. Jehad al-Jabiri, head of the Ministry of the Interior's General Directorate for Combating Explosives."
Encryption

Thawte Will End "Web of Trust" On November 16 127

An anonymous reader writes "Thawte is ending their Web of Trust, including their free Personal Email Certificates, in less than 2 weeks' time. This hasn't been picked up by the media yet. Seems to me a lot of people, including myself, are hurt by this." Thawte is offering a 1-year free VeriSign cert to those holding valid Personal Email Certificates; after that you pay.
Software

Why Users Drop Open Source Apps For Proprietary Alternatives 891

maximus1 writes "Hard as it may be to imagine, 'free' is not always the primary selling point to open source software. This article makes some interesting points about subtle ways Open Source projects might lose to the competition. Lack of features is a common answer you'd expect, but the author points out that complicated setup and configuration can be a real turn-off. Moreover, open source companies may not do enough to market major upgrades. If they did, they might lure back folks who tried and dumped the earlier, less polished version. This raises the question: what made you dump an open source app you were using? What could that project have done differently?"
The Internet

Twitter Says Your Tweets Belong To You 102

CWmike writes "Twitter has modified its terms of service to state unequivocally that messages posted belong to their authors and not to the company. 'Twitter is allowed to "use, copy, reproduce, process, adapt, modify, publish, transmit, display and distribute" your tweets because that's what we do. However, they are your tweets and they belong to you,' wrote Twitter co-founder Biz Stone in a blog post Thursday announcing the modifications. Twitter is still hammering out a set of guidelines for developers on the proper use of the company's API. What do Twitterers think of the TOS changes? Barbara Krasnoff writes, ' Twitter announces new ToS. Tweeters shrug,' noting that some appreciated the company's transparency in contacting its users and pointing out the changes that were being made."
Science

Creating a Quantum Superposition of Living Things 321

KentuckyFC writes "Having created quantum superpositions of photons, atoms, and even molecules, scientists are currently preparing to do the same for larger objects — namely viruses. The technique will involve storing a virus in a vacuum and then cooling it to its quantum-mechanical ground state in a microcavity. Zapping the virus with a laser then leaves it in a superposition of its ground state and an excited one. That's no easy task, however. The virus will have to survive the vacuum, behave like a dielectric, and appear transparent to the laser light, which would otherwise tear it apart. Now a group of researchers has worked out that several viruses look capable of surviving the superposition process, including the common flu virus and the tobacco mosaic virus. They point out that after creating the superposition, scientists will be able to perform the Schrodinger's Cat experiment for the first time, which should be fun (but less so for the virus)."
Microsoft

Microsoft Launches Its Own Open Source Foundation 344

darthcamaro writes "Microsoft already had its own open source (OSI-approved) licenses, its own open source project hosting site and now it's adding its own non-profit open source foundation. That's right, the company that is still banging the patent drum against open source now has its own 501(c)(6) open source foundation. Officially called the CodePlex Foundation, it's a separate effort from the CodePlex site and is aimed at helping to get more commercial developers involved in open source. Considering how they continue to attack Linux and open source, will anyone take them seriously?"
NASA

Can the Ares Program Be Salvaged? 245

MarkWhittington writes "The Augustine Commission has not officially presented its findings to the White House, but already a push back is starting to occur over the possibility that the Ares 1 rocket will be canceled after three billion dollars and over four years of development. According to a story in the Orlando Sentinel contractors involved in the development of the Ares 1 have started a quiet but persistent public relations campaign to save the Ares 1, criticized in some quarters because of cost and technical problems."
Linux Business

Microsoft Attacks Linux With Retail-Training Talking Points 681

DesiVideoGamer writes "Over at Overclock.net, a user has posted screen-shots from Microsoft's 'ExpertZone' training course entitled 'Linux vs. Windows 7.' This course is available to BestBuy employees and will make them eligible for a $10 copy of Windows 7 upon completion." The screenshots linked show at least some creative interpretations of the state of Linux vs. Windows on a wide range of things, from media playback and video conferencing to ease of updates to (of all things) keeping your PCs "safer." Most of the claims, though, aren't concrete enough to be perfectly refuted. Writes DesiVideoGamer, "I think I now know why, when I enter BestBuy, the employees say the odd lies that they do."

Slashdot Top Deals

You knew the job was dangerous when you took it, Fred. -- Superchicken

Working...