Hasta La Gadget!

Behold witchcraft! Some crazy mages who call themselves scientists are making stuff levitate using ultrasound waves. Check out the video below. It demonstrates three-dimensional, mid-air acoustic manipulation, aka levitation. Aka witchcraft!

Scientists in Japan are using this technique to suspend small objects in the air with ultrasound waves and they have created an array of wave emitters capable of levitating objects in any direction. Why do these wizards boast of their magic so openly, unafraid of burning at the stake? I have watched the video. I know magic when I see it! I am holding my pitchfork right now!

Seriously, this video just makes my brain hurt. It is amazing. Check out all of the details on their website. This amazing science is the work of professors Yoichi Ochiai, Takayuki Hoshi, and Jun Rekimoto. They have powerful magics indeed.

[via ViralViralVideos via Geekosystem]

Instructables member Patrick aka Mizchief100 made what he calls the Visual Impairment Aid or VIA, a wrist-mounted device that alerts the wearer of nearby objects by vibrating and emitting a beeping noise. It’s like the Spider Sense toy but in a more practical form, not to mention one that you can build yourself.

Like the Spider Sense toy, the VIA uses an ultrasonic distance sensor. Patrick added a buzzer and two vibrating motors to provide feedback. He also made a 3D-printed case for the device, adding Braille labels to its power switch and two buttons. One of the buttons lets the wearer select whether to use haptic, audio or both types of feedback. The other button switches between long and short distance modes: “…in short distance mode the beeping/vibrating is scaled so it’s easier to tell differences between things close up (<3 feet) and long distance mode makes it easier to tell things far away (~10 feet max).”

Head to Instructables to find out how you can make your own VIA. If you’re looking for a more practical version of Patrick’s device, check out the UltraCane.

[via Hacked Gadgets]

Sure, we’ve seen rats control other rats, but that won’t give us a legion of mind-controlled creatures to unleash upon an innocent public, will it? Harvard Medical School may unwittingly assist with solving our (rather misguided) plight, as it just experimented with a system that lets a human mind trigger actions in a rat’s motor cortex. The test had sensor-equipped humans watch a screen that flashed in sync with their EEG brain patterns for visual stimulation; as soon their attention shifted to controlling the rat, they triggered an ultrasonic pulse that twitched the rodent’s tail. There’s a few problems with the implementation beyond the obvious lack of autonomy for the poor target creature, though. The rat’s anaesthetized state likely affected the results, and the system isn’t currently sophisticated enough to map specific thoughts to corresponding actions. The Harvard team is working to refine the technology, however, and there may be a day when we can satisfy our megalomania… or at least, put the Pied Piper on notice.

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Via: New Scientist

Source: PLOS (PDF)

A redesigned PlayStation Move? Sony’s taken a stab at it before — but this time around, it’s imagining a controller with ultrasonic location analysis and Wiimote-like IR tracking. A new patent application details a “method for determining location of a controller,” which proposes tracking controller depth by measuring the travel time of sound emitted from the device to the television. Two-dimensional tracking would be managed via the existing Move’s visual spectrum camera, or by using a display-mounted IR emitter in conjunction with a remote mounted sensor (again, just like the Wii controller).

Although not technically part of the patent, the application’s attached visual aids are pretty creative too — showcasing a completely redesigned Move wand with swappable button faceplates. One embodiment shows two Move controllers attached end-to-end, mimicking a sword, while another shows a pair side by side, linked by a full gamepad sized faceplate. One bold image shows a player with two devices strapped to his ankles, performing a backwards flip to kick a digital soccer ball — Sony is apparently very confident about the patent’s potential tracking accuracy. We’ll reserve judgment until we see the technology in practice, but feel free to read the claims for yourself at the source link below, or simply mosey on past the break to see the aforementioned athlete trying to break his neck.

Continue reading Sony patent application reimagines PlayStation Move with ultrasonic capabilities, IR emitters

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Via: The Silent Chief

Source: FPO

Ultrasound is likely most often associated with sonograms, but some MIT engineers are poised to change that. By using two separate beams of inaudible sound waves (one at low-frequency, the other high) the team were able to increase the permeability of skin, in a bid to improve the efficiency of transdermal drug delivery. The technique works thanks to the waves exciting bubbles in a fluid (such as water), forcing them to swell and move chaotically. Once the bubbles reach a certain size they implode, sucking the surrounding fluid into the void. This process creates micro-jets of liquid, which cause miniscule tears in the skin, allowing it to (painlessly) absorb chemicals more effectively. In practice, a pre-treated area of skin is then covered with a patch containing the correct dose of drugs — but don’t worry, the skin is said to grow back just a few hours later.

Up until now, research into ultrasonic administration of drugs has concentrated on low-frequency waves, because the higher end of the spectrum doesn’t have enough energy to pop the bubbles. Higher frequencies do, however, help create more of them and also limits their lateral movement. By using both high- and low-frequencies, the MIT engineers found this produced better over all results, by not only increasing the skin’s uptake of the medicine, but also increasing the number of drugs that can be delivered this way. With pretty much anything that is usually delivered in capsule form being on the cards, this could make the administration of many popular drugs much more convenient and / or effective. Also excellent news for those who really don’t like needles.

Continue reading MIT engineers use ultrasound for improved topical drug administration (video)

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MIT engineers use ultrasound for improved topical drug administration (video) originally appeared on Engadget on Wed, 19 Sep 2012 04:23:00 EDT. Please see our terms for use of feeds.

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