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Comment Low pressure air condensation. (Score 1) 125

I'm only a second year in Aerospace, so I could have this wrong, but: Why implement a device that has significant mass, and requires a "large" amount of energy? The whole point is to reduce emissions, not create them. As I understand it, condensation trails are caused by low pressure areas formed by the wing tips/ends. Is there nothing that could interrupt the formation of low pressure pockets at the rear of the plane? I am aware that pockets of air can help aerodynamics of the jet. (Same principle behind golf-ball dimples.) Is there no middle ground?
Toys

Computer-Aided Lego Art Project 112

rsk writes "Justin Voskuhl, a Google engineer, in a 2-fold bid to fight boredom and figure out something to cover a large barren wall in his living room, one weekend developed a Java program using an annealing algorithm to figure out the best layout and colors of Lego blocks to reproduce a source image exclusively in Lego blocks inside a frame. He plans to release the source code soon. I probably would have just painted the wall ..."
Real Time Strategy (Games)

Starcraft 2 To Be a Trilogy 253

The Starcraft 2 gameplay panel was an eventful one at Blizzcon today. The developers faced an obstacle when designing the game; the plans they had were just too massive to implement in a single game on anything approaching a reasonable timeline. Their solution was to divide the game up into three separate, stand-alone titles: Terran: Wings of Libery, Zerg: Heart of the Swarm, and Protoss: Legacy of the Void. Read on for further details.
Technology

Artificial Gecko Adhesive, Now In Experimental Glue 102

thefickler writes "Scientists at the University of Dayton have created a peel-on, peel-off glue which mimics the wall-climbing abilities of Spiderman. The substance, based on the feet of the Gecko lizard, is three times stickier than existing adhesives. The material is so strong that a 4×4mm pad would be enough to hold a 1.5kg object such as a hardcover book. However, it's likely too expensive for consumer use: one British scientist calculates that a single Post-it note using the glue would cost around a thousand dollars." We've mentioned the possibilities of synthetic gecko technology several times before, including as applied in this wall-climbing robot; commercial applications have seemed just around the corner for a while now.

Blizzcon Begins, Diablo 3 Wizard Class Unveiled 142

Blizzcon is officially underway today, starting with a presentation showcasing the Worldwide Invitational tournament held earlier this year. A company spokesman went on to talk about the tournaments being held for World of Warcraft 3v3 Arena, Warcraft 3, and Starcraft 2, followed by word that Starcraft 2 was not yet ready for beta, but that Blizzcon attendees would be included in the first round of testers when the beta program starts. The big news of the presentation, though, was the unveiling of the Wizard class — the third such class to be announced, along with the previously mentioned Barbarian and Witch Doctor. Read on for some more details.
Windows

Windows 7 To Dial Down UAC 390

Barence writes "Engineers working on Windows 7 have admitted Vista's User Account Control was too intrusive, and are promising to tone it down in the forthcoming Windows 7. 'We've heard loud and clear that you are frustrated,' says Microsoft engineer Ben Fathi. 'You find the prompts too frequent, annoying, and confusing. We still want to provide you control over what changes can happen to your system, but we want to provide you a better overall experience.' According to Fathi, when Vista first launched, 775,312 unique applications were producing prompts — so some may be annoyed that it won't be scrapped entirely, but at least Microsoft is listening. The comments echo those of Steve Ballmer, who admitted at a conference in London that 'the biggest trade-off we made was sacrificing security for compatibility. I'm not sure the end-users really appreciated that trade-off.'"
Image

Slashdot's Disagree Mail 202

Slashdot has one of the best discussion systems there is. It's grown and adapted over the years to meet various challenges and suit the needs of our users. A lot of time and effort has gone into it and we are always open to user input to help make it better. Some of our best ideas start as user suggestions and we appreciate the feedback. Of course they can't all be gems and sometimes the suggestions we get are unworkable or just bizarre. Here are a few of my favorite unhelpful, helpful suggestions.
Encryption

First Secure Quantum Crypto Network Up and Running 102

John Lam was one of many readers to send in news that on Thursday, "at a conference in Vienna, Austria, as reported by the BBC, a European Community science working group built a quantum backbone using 200-km of standard commercial optical fiber running among seven sites and successfully demonstrated the first secure quantum cryptographic key distribution network. In addition, each of the seven links used a different kind of quantum encryption, demonstrating interoperability between the technologies. To paraphrase, the project focused on the trusted repeater paradigm and developed an architecture allowing seamless integration of heterogeneous quantum-key distribution-link devices in a unified framework. Network node-modules managing all classical communication tasks provide the underlying quantum devices with authentic classical channels. The node-module architecture uses a layered model to provision network-wide, end-to-end, provably secure key distribution."

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