In the Lab: Beetle Juice

from Earth2Tech by Georgia Flight

We know you're busy, so we'll forgive you for overlooking this week's announcement that researchers at England's University of Leeds have discovered a way to mimic the toxic defensive spray of the bombardier beetle. But you'll want to sit up and pay attention when you find out why: to create a new water-based compression technology called µMist that's being touted as the key to everything from improved fuel efficiency to next generation fire suppression to chemical-free drug delivery.

The lead researcher, Professor Andy McIntosh, describes the beetle's abilities as a type of complex pressure cooker. "Essentially it's a high-force steam cavitation explosion," he says in the release , "Using a chamber less than one millimeter long, this amazing creature has the ability to change the rapidity of what comes out, its direction and its consistency."

The µMist spray technology represents a huge potential leap forward for the precision control of droplet size, velocity and consistency, which in turn could have a massive impact on the efficiency of any system that uses mist as a delivery system–namely fire suppression, medical drug delivery and of course, fuel injection. The team has built a 2-cm chamber that can deliver mists up to 13 feet away, or produce a mist as fine as two microns. Hmm, imagine a fire extinguisher that fits in your pocket…

Say it with us now: Beetle juice, beetle juice, beetle juice. Biotech startup Swedish Biomimetics 3000, a self-described "V2PIO" (that's virtual venture philanthropic intersectional organization), found the research so promising that the company has inked a worldwide exclusive development and marketing deal for the µMist technology. No word yet on when these beetles will make their U.S. invasion.

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Jajah Now Does Click To Call For Anyone

from TechCrunch by Nick Gonzalez

Jajah will be officially announcing their click-to-call buttons on Monday. The buttons, which let people call the owner for free and anonymously, have been quietly in private beta over the past year. They are also taking on international calling card services and Jaxtr and Jangl, who already have click-to-call offerings on social networks and dating sites.

The call buttons are available to registered Jajah users and come as a bit of embed code you can put on your web page or at the end of an email. They come with several customizations. You can adjust the CSS styling, adjust the number it calls, and restrict which countries can try to call you.

When users click the button, the caller enters their phone number and Jajah connects the two parties over a VOIP line. The callee is then told who called and asked if they want to accept the call, say they're busy, or blacklist the number. If they accept the call, the minutes are charged to their Jajah account, like an "800 number". At two to three cents per minute, it can be used for some cheap long distance calling. For the cost conscious, Jaxtr and Jangl are still free, however.

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Fusion-io's ioDrive puts power of a SAN on a PCIe card

from Engadget by Darren Murph

In a recent demonstration at DEMOFall '07, Fusion-io showed off its newest PCIe device, which reportedly "places the power of a SAN (storage area network) in the palm of your hand." Essentially, this single device boasts up to 640GB of storage capacity, delivers 100,000 IOPS (input / output per second) and can achieve sustained data rates of 800Mb/sec (read) and 600Mb/sec (write)." In marketing terms, the ioDrive can perform "nearly a thousand times faster than any existing disk drive," and it can reportedly be integrated into existing data centers or workstations without any alterations to your infrastructure. Next quarter, the outfit will begin shipping the card in 40GB, 80GB, 160GB and 320GB configurations (with the 640GB flavor to follow suit), but unfortunately, official prices have not yet been divulged. Oh, and be sure to check out a video of the ioDrive's unveiling here. [Via TGDaily]

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MAGNETIC REFRIGERATOR NEEDS NO ELECTRICITY

Scientists at the Technical University of Denmark have created a refrigerator that cools using magnets instead of electricity

A group of researchers at the Technical University of Denmark's project laboratory in Risø have discovered a cooling method that uses magnetic materials instead of electricity, reported daily free newspaper Nyhedsavisen.

The invention will allow for refrigerators to replace existing electric refrigerators in homes and businesses with a fully environmentally friendly power source. Although the first prototype will not be ready until 2010, the project's researchers say the appliance's cooling cycle efficiency will be 60 percent greater than that of conventional refrigerators.

The new method uses opposing magnetic fields to increase the temperature of the materials employed. The heat energy is transported through a non-volatile fluid, such as water, and then thermodynamically reversed to a cold temperature. The scientists have already been able to cool a 20° C room to 11°C using the new technology.

'It probably isn't realistic to believe that magnetic cooling technology will be immediately available for consumer use, especially as refrigerator manufacturers have brought prices down so much in the past few years,' said Christian Bahl, one of DTU's project researchers.

But Bahl said another of the magnetic refrigerator's advantages is that it is silent.

'So it will likely be first used in various niche areas, such as places where a quiet environment is an important factor.'

Although magnetic cooling is not in itself a new research field, the DTU scientists were the first to use the technology in an actual physical setting to cool room temperatures.

The Copenhagen Post

Edited September 17, 2007

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Utilities: Automatically Refresh Any Web Page with Page Reboot

from Lifehacker by Gina Trapani

Keep an eye on that eBay auction in its closing minutes automatically with Page Reboot, a web service that refreshes a given web site every 30 seconds (or any interval you set). Similar to the ReloadEvery Firefox extension, drop the URL into Page Reboot's refresh box, set the refresh interval (in seconds) and go. A bookmarklet version is also available.

PAGE REBOOT [via Micro Persuasion]

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