Hasta La Gadget!

We’ve seen Emotiv’s Epoc headset control cars and trapeze acts, but now a small posse of students at Columbia University is teaching it how to control a robotic arm. The appendage, aptly named ARM for Assistive Robotic Manipulator, was envisioned as a wheelchair attachment to help the disabled. According to the team, the goal was to keep costs in the neighborhood of $5,000 since insurance outfits Medicare and Medicaid won’t foot a bill for assistive tech that’s much more than $10,000. To keep costs low, the crew built the limb from laser cut wood, and managed to keep the final price tag at $3,200. Since picking up EEG signals and interpreting them accurately can be tricky, the group says it settled on monitoring EMG waves, which are triggered by muscle movements, for additional reliability.

Lifting your eyebrows makes the device open its grip, clenching your teeth shuts it and moving your lips to the left and right twists the claw, while other motions are currently handled by using a PlayStation 2 controller. In the lab, the contraption has seven degrees of freedom, but it was reduced to five when we took it for a spin. It was hit or miss when this editor put the headgear on, between making sure facial gestures were spot on and the equipment’s attempts to pick up clear signals.

Filed under: Robots, Alt

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Cornell University may be the host of the Cornell Cup competition, but that doesn’t mean it can’t bring its own robots to join in on the fun. This year, students brought along a few bots, dubbed dunebots, outfitted with all-terrain wheels and equipped with laser tag turrets. The rugged rig features a pair of cameras, a dustproof and water resistant chassis, air intakes capped with filters, and other custom components for suspension and steering. Not only does the team plan on releasing code and documentation for the project, but the hardware was designed with modularity in mind, so others can build their own modified versions.

Taking the robot into battle requires two pilots armed with Xbox 360 controllers: one directing where it travels, and another aiming the turret and firing. Driving the buggy over the web is also possible, though it takes a few seconds for it to react. The group also baked in voice controls, to boot. If you’re not watching the car duke it out in person, you can even tune in over the web and watch a live video stream from one of its onboard cams. Its top speeds haven’t been firmly nailed down, but the team says the bot was running at approximately 35 percent of its full potential, since it was deemed too fast for conference attendees. Hit the jump to catch us talk with the effort’s Computer Science lead Mike Dezube, and to see a dunebot in action.

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Early this morning at Moffet Air Field in Mountain View, California, Solar Impulse finally took off on the first leg of its barnstorming tour across the US. Of course, this isn’t the first time the sun-powered plane and its pilots, Bertrand Piccard and Andre Borschberg, have flown long distance, but it is the first time it’s taken wing through American airspace. Why has it come across the pond? To raise pubilc and political awareness about the benefits of going green and increasing energy efficiency — and perhaps pick up an additional sponsor or two for its second-gen aircraft (currently in development) meant to fly around the world in 2015. “With the technologies we have onboard, we can divide by two the energy consumption of our world, and produce half of the rest [energy we need] with renewable sources” according to Piccard.

This first portion of the journey will end in Phoenix, and it’ll take around twenty hours to get there, as the plane’s meager output limits its average speed to around 40MPH. Should any of you want to join along with Piccard and Borschberg as they fly across the country, you can hit the Solar Impulse Across America website to see a livestream from the cockpit, along with real-time altitude, air speed and battery status of the aircraft. And, you can watch a video of Solar Impulse taking off on its North American journey and hear Borschberg talk about learning to fly it after the break.

Filed under: Transportation, Alt

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When someone says “The idea is extremely simple, a tiny tesla coil inside a fake hammer” we look up “simple in the dictionary just to check. This is Hack a day though, where simple can mean almost anything — in this case a genuine electrified Mjölnir replica. All you need to make your own is the aforementioned tesla coil (you have one right?), some foam, a battery pack and, well… the ability to follow instructions. Fittingly, the first attempt at Thor’s hammer went on a saga of its own, suffering damage at the hands of the delivery service en route to a studio. No bother for our resident hacksters though, who patched it back up in no time to the fully functioning — if a little over-sized — model you’ll see in the video past the break.

Filed under: Misc, Alt

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Source: Hack a day

NASA wants your words,

preferably a haiku.

It might go to Mars!

Filed under: Transportation, Science, Internet, Alt

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Via: NPR

Source: NASA