google growing at all: Google Chrome 7.0.517.8 Beta

As you know google is most growing company in internet, it has more plan to make company great. so, google has started many services , And particular that I will talk about google chrome! 

Fastest browser ever !

first google launched its own browser and than seeing popularity, it has launched new google chrome 7.0517.8 beta version. YES, that's right. type in the address bar and get suggestions for both search and web pages. Access your favorite pages instantly with lightning speed from any new tab. Don't want pages you visit to show up in your web history? Choose incognito mode for private browsing. Google Chrome warns you if you're about to visit a suspected phishing, malware or otherwise unsafe website.

 that's all feature of google chrome, and chck out more features with more smart and of course more fastest browser of google. try it out today!

download here  Google Chrome 7.0.517.8 Beta

Pressure-sensitive crystalline semiconductor used to create artificial skin

Engineers at the University of California, Berkeley, have developed a pressure-sensitive electronic material from semiconductor nanowires that will help overcome a key challenge in robotics: adapting the amount of force needed to hold and manipulate a wide range of objects. The artificial skin has been dubbed "e-skin" and the researchers say it is the first such material made out of inorganic single crystalline semiconductors.

"The idea is to have a material that functions like the human skin, which means incorporating the ability to feel and touch objects," said Ali Javey, head of the UC Berkeley research team developing the artificial skin.

"Humans generally know how to hold a fragile egg without breaking it," said Javey. "If we ever wanted a robot that could unload the dishes, for instance, we'd want to make sure it doesn't break the wine glasses in the process. But we'd also want the robot to be able to grip a stock pot without dropping it."

Previous attempts to develop an artificial skin relied upon organic materials because they are flexible and easier to process. "The problem is that organic materials are poor semiconductors, which means electronic devices made out of them would often require high voltages to operate the circuitry," said Javey. "Inorganic materials, such as crystalline silicon, on the other hand, have excellent electrical properties and can operate on low power. They are also more chemically stable. But historically, they have been inflexible and easy to crack. In this regard, works by various groups, including ours, have recently shown that miniaturized strips or wires of inorganics can be made highly flexible - ideal for high performance, mechanically bendable electronics and sensors."

The UC Berkeley engineers utilized an innovative fabrication technique where the nanowires are "grown" on a cylindrical drum and then rolled onto a sticky substrate. The substrate used was a polyimide film, but the researchers said the technique can work with a variety of materials, including other plastics, paper or glass. As the drum rolled, the nanowires were deposited, or "printed," onto the substrate in an orderly fashion, forming the basis from which thin, flexible sheets of electronic materials could be built. 

For the e-skin, the engineers printed the nanowires onto an 18-by-19 pixel square matrix measuring 7 centimeters on each side. Each pixel contained a transistor made up of hundreds of semiconductor nanowires. Nanowire transistors were then integrated with a pressure sensitive rubber on top to provide the sensing functionality. The matrix required less than 5 volts of power to operate and maintained its robustness after being subjected to more than 2,000 bending cycles. The researchers demonstrated the ability of the e-skin to detect pressure from 0 to 15 kilopascals, a range comparable to the force used for such daily activities as typing on a keyboard or holding an object.

Robots taught to deceive

Researchers from the Georgia Institute of Technology have developed algorithms that allow a robot to determine whether it should deceive a human or other intelligent machine and which techniques to use for the best deceptive strategy. The new work, published in the International Journal of Social Robotics, is believed to be the first detailed examination of robot deception.

Georgia Tech's Alan Wagner (right) says that robots capable of deception will likely be valuable for military and search and rescue operations. A search and rescue robot may need to deceive in order to calm or receive cooperation from a panicking victim. Robots on the battlefield with the power of deception will be able to successfully hide and mislead the enemy to keep themselves and valuable information safe.

Wagner and his co-researchers focused on the actions, beliefs and communications of a robot attempting to hide from another robot to develop programs that successfully produced deceptive behavior. Their first step was to teach the deceiving robot how to recognize a situation that warranted the use of deception. The researchers used interdependence theory and game theory to develop algorithms that tested the value of deception in a specific situation. A situation had to satisfy two key conditions to warrant deception -- there must be conflict between the deceiving robot and the seeker, and the deceiver must benefit from the deception.

Once a situation was deemed to warrant deception, the robot carried out a deceptive act by providing a false communication to benefit itself. The technique developed by the Georgia Tech researchers based a robot's deceptive action selection on its understanding of the individual robot it was attempting to deceive.

To test their algorithms, the researchers ran 20 hide-and-seek experiments with two autonomous robots. Colored markers were lined up along three potential pathways to locations where the robot could hide. The hider robot randomly selected a hiding location from the three location choices and moved toward that location, knocking down colored markers along the way. Once it reached a point past the markers, the robot changed course and hid in one of the other two locations. The presence or absence of standing markers indicated the hider's location to the seeker robot.

"The hider's set of false communications was defined by selecting a pattern of knocked over markers that indicated a false hiding position in an attempt to say, for example, that it was going to the right and then actually go to the left," explained Wagner.

The hider robots were able to deceive the seeker robots in 75 percent of the trials, with the failed experiments resulting from the hiding robot's inability to knock over the correct markers to produce the desired deceptive communication.

"The experimental results weren't perfect, but they demonstrated the learning and use of deception signals by real robots in a noisy environment," said Wagner. "The results were also a preliminary indication that the techniques and algorithms described in the paper could be used to successfully produce deceptive behavior in a robot."

The researchers are not unaware of the ethical issues that robotic deception creates. "We have been concerned from the very beginning with the ethical implications related to the creation of robots capable of deception and we understand that there are beneficial and deleterious aspects," explained co-researcher Ronald Arkin. "We strongly encourage discussion about the appropriateness of deceptive robots to determine what, if any, regulations or guidelines should constrain the development of these systems."