ultra sonic
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Tacit sonar gauntlet gives the blind ultrasonic eyes (video)
Sure, your Arduino project can make a stuffed monkey dance, but is it really doing anything for the greater benefit of mankind? Okay, maybe -- but not to the same degree as Grathio Labs' Tacit glove, an Arduino powered sonar device that can help the vision impaired navigate foreign environments. This wrist-mounted gauntlet is comprised of an Arduino microcontroller, a few ultrasonic sensors, and a pair of servomotors to apply variable pressure to the user's wrist to indicate their distance from an object or obstacle. Best of all, the gizmo's circuit and software are registered under Creative Commons, which means you're free to snag the plans from the source link below, and build your own. Go on, build one. Sure, it's a lot of work, but would you rather rock a wrist-mounted sonar gun, or don an ear-tugging bicycle helmet? Your choice.
Doctor Who's sonic screwdriver is still fiction -- but not forever
Kudos to Bristol University for catching our attention, and doing so in the name of promoting education. Professor of Ultrasonics Bruce Drinkwater is evoking a rather iconic name to better explain how cool science / engineering can be. Though already used in the manufacturing and medical fields -- don't yawn and look away just yet -- Drinkwater expresses some confidence that the future of this technology could very well usher in a pocketable device similar to the sonic screwdriver fancied by a certain former resident of Gallifrey. You know, that do-it-all device that can repair electronic equipment, burn and cut items, fuse metals, scan for information, and render virtually any lock useless... except here we're focusing on ultrasonic sound waves capable of fixing parts together and creating miniature force fields. As for the Time Lord himself, we know of at least one past Doctor who, as joked by a later incarnation, would rather "save the universe using a kettle and some string" (and has, in more recent iterations, pulled out miraculous victories with even a BlackBerry Storm). Point is, you should maybe consider a degree in Physics and an eccentric outfit should you ever find yourself holding a working prototype.
New low-intensity pulsed ultrasound device helps re-grow teeth
We'd gladly trade in most of our gadgets if it meant we never had to go under the drill at the dentist again. But researchers at the University of Alberta in Canada don't want our electronics, they just want a few more years to perfect their low-intensity pulsed ultrasound (LIPUS) technology that they hope will ultimately be able to re-grow lost or severely damaged teeth from the root, eliminating the need for pricey prosthetics and painful procedures. The pea-sized device, which can be held in place by a bracket or a crown, is controlled by a wireless remote and needs to gently massage the gums for 20 minutes a day over the course of four weeks to attain noticeable growth. This tech isn't expected to be available to the public for another two years, so hold off on that all-candy and Red Bull diet you've been planning for just a little longer while you ponder the rather incredible possibility that this method could eventually be used to grow human bones and actually make people taller without subjecting them to any kind of medieval torture.
