Design News, March 2013

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developed the structures and properties of that of elastic cartilage, which is promising for use in human patients. The Wake Forest scientists haven't limited their study and development to just cartilage.They are looking into developing bio-printing of dental implants, prosthetics, and organs, as well. According to the scientists, development of printing dental implants is progressing considerably. An implant can be fabricated using a digitized intra-oral scan to gain a blueprint of sorts, which can be emailed to a dental lab for precise printing of the patient's teeth. Not only is the process significantly cheaper, but it can be done quicker than any past method. — Cabe Atwell, Contributing Editor, Design Hardware & Software For More Information: Bespoke Innovations: Automation & Control Robots Taught Deception by Mimicking Squirrels New technology allows robots to deceive each other. Researchers used the behavior of squirrels when storing food to develop the algorithms. Squirrels store their acorns in specific locations and routinely keep an eye on those spots to ensure the food is still there.When other squirrels are near a food store, the possessive squirrel will try to lure them away by visiting spots where no acorns are stored and treating those spots in a similar manner. In nature, this behavior works. Researchers also used a type of bird found in the Middle East called the Arabian babbler to develop the algorithms. These birds distract a predator bird by joining with other birds and attacking a predator in a fake show of force.The deception technique can inspire the predator to give up the hunt. To prove that the deception technology works in robots, Georgia Tech researchers dispatched two autonomous robots to play 20 games of hide-and-seek.The hiding robot was successful at deceiving the other robot in 75 percent of tests, researchers said. Failures occurred when the hiding robot did not knock over the appropriate markers to accurately deceive the seeking robot. — Elizabeth Montalbano, Contributing Writer For More Information: Slideshow: Robots Creeping & Crawling Into New Territory: squirrels aren't exactly the first thing that come to mind when you think of withholding the truth, but researchers have used the bushy-tailed creatures to teach robots to do exactly that. Researchers at the Georgia Institute of Technology at the behest of the Office of Naval Research have developed technology that can allow robots to deceive each other, much in the same way squirrels do when trying to protect their hidden acorns. The military could one day use the robots to protect ammunition or supply stores in combat situations or on the battlefield. "We have developed algorithms that allow a robot to determine whether it should deceive a human or other intelligent machine and we have designed techniques that help the robot select the best deceptive strategy to reduce its chance of being discovered," said Ronald Arkin, a Regents professor in the Georgia Tech School of Interactive Computing, in a press release. Design News | march 2013 | www.d esign n –35–

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