Heroes in a half shell: autonomous robot sea turtles in development

Heroes in a half shell autonomous robot sea turtles in development

Sure you could have a robot assist you around the home, or even one that’ll make factories friendlier, but we’ll opt for a robot sea turtle any day of the week. The Swiss folks over at ETH Zurich are working on making that a reality with the Naro-Tartaruga, a turtle-inspired machine that would swim efficiently while carrying cargo in its shell. It’s currently a cylindrical aluminum vessel with a couple of flippers, but concept designs include that totally bad-ass bot in the image above. The turtle-bot has a top speed of over 7 knots, so it’ll handily beat any real sea turtle in a race, and the big torso has enough space for battery and sensors that are necessary for autonomous function. The fins on the turtle have a fully three-dimensional mechanism — there are three actuators per fin, and each actuate the fin axle independently. The end goal is for the development of underwater autonomous vehicles, which will hopefully bring us one step closer to SeaQuest DSV. In the meantime, we’d like one just so we can freak the hell out of our cats.

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Heroes in a half shell: autonomous robot sea turtles in development originally appeared on Engadget on Fri, 05 Oct 2012 00:37:00 EDT. Please see our terms for use of feeds.

Permalink IEEE Spectrum, PopSci  |  sourceETH Zurich  | Email this | Comments

IBM creates consistent electron spin inside semiconductors, takes spintronics one twirl closer

IBM creates consistent electron spin inside of a chip, takes spintronics one twirl closer

A fundamental challenge of developing spintronics, or computing where the rotation of electrons carries instructions and other data rather than the charge, has been getting the electrons to spin for long enough to shuttle data to its destination in the first place. IBM and ETH Zurich claim to be the first achieving that feat by getting the electrons to dance to the same tune. Basing a semiconductor material on gallium arsenide and bringing the temperature to an extremely low -387F, the research duo have created a persistent spin helix that keeps the spin going for the 1.1 nanoseconds it would take a normal 1GHz processor to run through its full cycle, or 30 times longer than before. As impressive as it can be to stretch atomic physics that far, just remember that the theory is some distance from practice: unless you’re really keen on running a computer at temperatures just a few hops away from absolute zero, there’s work to be done on producing transistors (let alone processors) that safely run in the climate of the family den. Assuming that’s within the realm of possibility, though, we could eventually see computers that wring much more performance per watt out of one of the most basic elements of nature.

Continue reading IBM creates consistent electron spin inside semiconductors, takes spintronics one twirl closer

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IBM creates consistent electron spin inside semiconductors, takes spintronics one twirl closer originally appeared on Engadget on Mon, 13 Aug 2012 14:41:00 EDT. Please see our terms for use of feeds.

Permalink TG Daily  |  sourceNature  | Email this | Comments