Mar 28 2009

New Speed Record Set For Wind-Powered Vehicles

Hugh Pickens writes “Richard Jenkins reached 126.1mph in his Greenbird car on the dry plains of Ivanpah Lake in Nevada, setting a new world land speed record for a wind-powered vehicle. ‘It’s great; it’s one of those things that you spend so long trying to do and when it actually happens, it’s almost too easy,’ says Jenkins. The Greenbird is a carbon fiber composite vehicle that uses wind (and nothing else) for power. The designers describe it as a ‘very high performance sailboat,’ but one that uses a solid wing, rather than a sail, to generate movement. Due to the shape of the craft, especially at such high speeds, the wings also provide lift; a useful trait for an aircraft, but very hazardous for a car. To compensate for this, the designers have added small wings to ‘stick’ the car to the ground, in the same way Formula 1 cars do. ‘Greenbird weighs 600kg when it’s standing still,’ says Jenkins. ‘But at speed, the effect of the wings make her weigh just over a ton.’ Jenkins has also built a wind-powered craft that travels on ice, rather than land. ‘Now that we’ve broken the record, I’m going back on to the ice craft. There’s still some debate as to whether traveling on ice or land will be faster.'”

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Mar 28 2009

iPhone App Refund Policies Could Cost Devs

CBRcrash writes “Apparently, if iPhone users decide that they want a refund for an app (users can get a refund within 90 days, according to Apple policy), Apple requires that developers give back the money they received from the sale. But, here’s the kicker: Apple will refund the full amount to the user and says that it has the right to keep its commission. So, the developer not only has to return the money for the sale, but also has to reimburse Apple for its commission.”

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Mar 28 2009

Windows 7 Touchscreen Details Emerging

nandemoari writes “Microsoft has revealed more about Windows 7 and its support for touch screen technology. The system sounds impressive, however, reports suggest it appears to have a high error rate. In an early version of the system, Microsoft found some problems. For example, both the zoom and rotate functions worked less than 75% of the time, often because the computer confused the two. To rectify this, engineers redesigned the system so that it only looks out for gestures specifically relevant to the program being used. This made a significant improvement: the zoom gesture was now recognized 90% of the time. The problem is that even a 90% success rate may be too low. If you can imagine how frustrating it would be if one in ten keystrokes or mouse movements didn’t do what you intended, you can see why touch screen technology will need to be even more reliable if it’s to truly improve the user experience. PC Authority has a related story about statements from HP, who don’t expect such technology to replace keyboards and mice any time soon.”

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Mar 28 2009

Growing Plants In Lunar Gravity

smooth wombat writes “If everything goes according to plan, an experiment designed to test whether plants can grow in the limited lunar gravity will hitch a ride with a competitor for the Google Lunar X Prize. ‘The current prototype for the greenhouse is a 15-inch-high (37.5-centimeter-high) reinforced glass cylinder that’s about 7 inches (18 centimeters) wide on the bottom. Seeds for a rapid-cycle type of Brassica plant — basically, mustard seeds — would be planted in Earth soil within the container.’ The press release from Paragon Space Development Corporation outlines its partnership with Odyssey Moon to be the first to grow a plant on another world. In addition to the experiment, Paragon will be helping Odyssey with the thermal control system and lander design. To win the prize, Odyssey must land its craft on the lunar surface by the end of 2014.”

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Mar 28 2009

Red Hat — Stand Alone Or Get Bought?

head_dunce writes “It seems that this economy has inspired a lot of businesses to move to Linux, with Red Hat posting profits that beat everyone’s expectations. There’s a dark side to being a highly profitable company in a down economy, though — now there are talks of Citigroup and Oracle wanting to buy Red Hat. For a while now, we’ve been watching Yahoo fend off Carl Icahn and Steve Ballmer so that they could stay independent, but the fight seems to be a huge distraction for Yahoo, with lots of energy (and money) invested. Will Red Hat stay independent? What potential buyer would make for a good parent company?”

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Mar 27 2009

3D-Based CAPTCHAs Become a Reality

mateuscb writes “A new way of creating a CAPTCHA using 3D objects has become a reality. The idea was thought up independently by blogger Taylor Hayward and by the folks at YUNiTi.com. ‘Similar to Hayward’s idea, this new technology relies on our ability to identify objects in 3D instead of using alphanumeric characters. YUNiti’s 3D Captcha, however, has three objects in the challenge and extends the list of images to any object, not limiting it to animals as in Hayward’s idea. This increases the challenge’s level of complication to prevent computers from successfully making the correct guesses.’ I, for one, welcome the thought of not having to read more and more complex CAPTCHA. Lately, I’ve been having a hard time getting CAPTCHA to work the first time.”

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Mar 27 2009

Microsoft, Amazon Oppose Cloud Computing Interoperability Plan

thefickler writes “Microsoft is opposing an industry plan, the Open Cloud Manifesto, to promote cloud computing interoperability. Officially, Microsoft says the plan is unnecessarily secretive and that cloud computing is still in an early stage of development, but there are allegations that Microsoft feels threatened by the plan because it could boost Linux-based systems. The goal of the group behind the manifesto, the Cloud Computing Interoperability Forum (CCIF), is to minimize the barriers between different technologies used in cloud computing. And this is where the problem seems to lie, with the group stating that ‘whenever possible the CCIF will emphasize the use of open, patent-free and/or vendor-neutral technical solutions.’ Some speculate that Microsoft is actually worried that this will allow open source systems, such as Linux, to flourish, at the expense of Microsoft technology.” Amazon is also declining to support the plan, saying, “the best way to illustrate openness and customer flexibility is by what you actually provide and deliver for them.” Reader smack.addict contributes a link to an O’Reilly piece asking what openness really means for cloud computing.

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Mar 27 2009

More Security Loopholes Found In Google Docs

Security consultant Ade Barkah checked in with us to alert us to a couple of serious security issues associated to Google Docs.

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Mar 27 2009

Data Preservation and How Ancient Egypt Got It Right

storagedude writes to tell us that a storage geek has an interesting article on why ancient Egyptians were better than us at data preservation — and what we need to do to get caught up. “After rocks, the human race moved on to writing on animal skins and papyrus, which were faster at recording but didn’t last nearly as long. Paper and printing presses were even faster, but also deteriorated more quickly. Starting to see a pattern? And now we have digital records, which might last a decade before becoming obsolete. Recording and handing down history thus becomes an increasingly daunting task, as each generation of media must be migrated to the next at a faster and faster rate, or we risk losing vital records.”

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Mar 27 2009

Are Long URLs Wasting Bandwidth?

Ryan McAdams writes “Popular websites, such as Facebook, are wasting as much as 75MBit/sec of bandwidth due to excessively long URLs. According to a recent article over at O3 Magazine, they took a typical Facebook home page, looked at the traffic statistics from compete.com, and figured out the bandwidth savings if Facebook switched from using URL paths which, in some cases, run over 150 characters in length, to shorter ones. It looks at the impact on service providers, with the wasted bandwidth used by the subsequent GET requests for these excessively long URLs. Facebook is just one example; many other sites have similar problems, as well as CMS products such as Word Press. It’s an interesting approach to web optimization for high traffic sites.”

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