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Posts with tag vanderbilt

Rocket-powered mechanical arm might boost prosthetic tech


A group of researchers at Vanderbilt have built a mechanical arm that outperforms traditional battery-powered prosthetics the old-fashioned way: by strapping on a couple rocket motors. The arm, which the team built for DARPA's Revolutionizing Prosthetics 2009 program, relies on a modified miniature version of the same rocket motors the space shuttle uses to reposition itself in space: hydrogen peroxide is burned in the presence of a catalyst to produce pure steam, which is then used to move the arm. Unlike the batteries in traditional arms, which die quickly, a small canister of hydrogen peroxide concealed in the arm can last up to 18 hours, and provides about the same power and functionality of a human arm. Cooler still is the method the arm deals with waste heat and steam: just like a regular arm, it's allowed to filter up through a permeable skin, producing "sweat" -- the same amount of perspiration you'd get on a warm summer day, according to the team. Check a video of the arm in action at the read link -- it's even niftier than it sounds.

Arkansas school to trial iPod, WiFi-equipped school bus


If you thought taking a ride on the GamerBUS was a thrill, this one will really make you long to be a youngster in Arkansas again. Reportedly, the Sheridan school district is launching the Aspirnaut Initiative to bring laptops, iPods, and wireless internet right onto Bus 46, and amazingly, they expect kids to actually glean knowledge rather than hit up a round or two of Counter-Strike. The project hopes to make the unbelievably long (three hours, to be exact) commute that some rural students face a bit less boring and a tad more educational, as students will have access to informational podcasts and web-based learning modules whilst cruising on home. Interestingly, the three-year pilot project will not give students class credit for their extra effort initially, but for brainiacs who stick with the program, they'll purportedly be keeping the goods for themselves once the trial run concludes.

[Via ArsTechnica]



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