Technology Update!!

Swarm robots perform classical 'scores' inside Georgia Tech's GritsLab (video) The folks at the Georgia Robotics and InTelligent Systems (Grits) Lab at Georgia Tech have been hard at work for some time now researching  swarm robots . A portion of said work deals with tasks require that a group of hi-tech gadgets to individually reach a location and a specific time -- much like the mobile landing plartform that we saw last year. The group is given a "score" and must determine how many of the Khepera robots are needed meet the goal, assigning specific roles and determining the shortest route to hitting their targets. One particular demo that we saw involved the swarm bots playing a projected piano of sorts to perform a short snippet of Beethoven's "Fur Elise" -- internal cameras, special "hats" and cameras mounted around the room lend a hand in carrying out the assigned duties. Musical performance is just one of the projects unde...

Lenovo's upcoming five-inch 1080p phone to feature dual-SIM connectivity By now you should already know that  HTC ,  Sharp  and  Oppo  share a common theme: 1080p display on their five-inch phones. As it turns out, Lenovo also wants in on the VIP list. Spotted on Sina Weibo earlier this week (but have since been deleted) are the above three screenshots showing off Lenovo's customized Android UI in 1080p glory. As with many phones in China these days, the device in question supports dual-SIM connectivity -- the screenshots indicate that it's connected to China Telecom's CDMA2000 network and China Mobile's 2G network simultaneously. Our own source wouldn't directly confirm that it's a five-inch display on this mysterious phone, but we were told that it'll be somewhere between 4.5 inches and 5.5 inches -- we'll take that as a yes, especially since the only 1080p mobile panels available right now are the five-inch, 440ppi ones fro...

How to Edit PDF Files without Adobe Acrobat                                                                            The PDF file format was originally created by Adobe in the early ’90s and there are now over 700+ million PDF documents on the Internet according to Google (search for filetype:pdf). There are several reasons why the PDF file format is so popular for exchanging all sorts of documents including presentations, CAD Drawings, invoices and even legal forms. PDF files are generally more compact (smaller in size) than the source document and they preserve the original formatting. Unlike Word and other popular document formats, the content of a PDF file cannot be modified easily. You can also prevent other users from printing or copying text from PDF documents. You can open...

Undocumented Gmail Search Operator Locates all the Emails with Large Attachments                                              . The undocumented size search operator in Gmail will help you locate all the big emails in your mailbox that include large file attachments Search Gmail messages by Size using the undocumented “size” operator Wondering what email messages are eating up all the Gigabytes of space that you have in your Gmail mailbox? There are  Google Scripts  and external  web apps  that let you discover all the space-hogging email attachments but you don’t need them anymore. Gmail supports an undocumented “size” search operator that will let you quickly find all the big emails in the mailbox whose size exceeds a particular threshold. The search syntax is: size:[size in bytes] To give a real example, a Gmail search query ...

The lowest cost Tablet in the world launched!! Coming at a price tag of Rs 1,130 for students, the new version ‘Aakash 2′, which will be made available to students of engineering colleges and universities to begin with, is now powered by a processor running at 1 GHz, has 512 MB RAM, a 7 inch capacitive touch screen and battery life of three hours on Wi-Fi. The advanced version of the low-cost tablet Aakash was launched in New Delhi by President  Pranab Mukherjee . The screen resolution is 800×480 pixels. The previous version of Aakash had a 7-inch resistive touch screen. Akash 2 runs Android 4.0 aka Ice-Cream Sandwich and has front facing VGA camera along with Wi-fi support. It has 4GB (internal) flash memory, which is expandable up to 32GB using a micro SD card. It has been developed under the aegis of IIT Bombay with the active support of C-DAC. Datawind is rolling out the device. “The price is Rs 2,263 at which the government purchases the device from us...

Firefox 15 Goes on Memory Diet!! Better management of memory and updates highlight the latest release of the  Mozilla Foundation's  Web browser, Firefox 15. Firefox's development team has steadily improved the browser's memory management over recent months, but with this release of the program, it's targeting a major contributor to the software's piggish memory ways: add-on applications. The most common cause of leaks from add-ons is when they accidentally hold on to extra copies of a website in memory after a user has closed a tab, Firefox Product Manager Asa Dozier explained in Mozilla's Future of Firefox blog. The pages pile up and eat massive amounts of memory with no user benefit, he explained. With Firefox 15, Mozilla has developed a mechanism to prevent those leaks from happening. The browser now detects that pattern, recaptures the leaked memory and frees it up. The result is that Firefox stays stable even if an add-on is making this mistake...

Memristor: A Groundbreaking New Circuit: Since the dawn of electronics, we've had only three types of circuit components--resistors, inductors, and capacitors. But in 1971, UC Berkeley researcher Leon Chua theorized the possibility of a fourth type of component, one that would be able to measure the flow of electric current: the memristor. Now, just 37 years later, Hewlett-Packard has built one. What is it?  As its name implies, the memristor can "remember" how much current has passed through it. And by alternating the amount of current that passes through it, a memristor can also become a one-element circuit component with unique properties. Most notably, it can save its electronic state even when the current is turned off, making it a great candidate to replace today's flash memory. Memristors will theoretically be cheaper and far faster than flash memory, and allow far greater memory densities. They could also replace RAM chips as we know them, so that...

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