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Ever wondered how well playing  Call of Duty  at maximum volume mimics a real combat experience? Researchers at the Missouri University of Science and Technology must have asked a similar question, because they've built a 64-speaker surround-sound audio battlefield designed to train new troops. The system reproduces screaming fighter jets, rumbling tanks, and persistent gunfire -- all the better to acclimate recruits to the overwhelming, disorienting cacophony of warfare. Veterans say even with the four large 20-hertz subwoofers, it's nowhere near the real thing: combat volume is 25 percent louder than the average rock concert, at levels that can cause permanent hearing loss. Still, the creators say every bit of training helps; having near-combat experience is certainly better than none at all. So tell that to your neighbors next time they bang on your wall. [Image via  The Associated Press ] Associated Press

iRobot may still be best known as the creator of the homely Roomba vacuum-cleaning drone, but savvy readers will know the company's endeavors span a pretty broad range of robot-related activities. One of those has now borne fruit in the shape of a multiyear agreement with the US Navy for the provision of "portable robotic systems" that can identify and dispose of explosives while also performing a bit of reconnaissance work in their spare time. The announcement doesn't tell us the particular model(s) or number of bots that will be provided, but there is clarification to say that iRobot will be responsible for providing spares, repairs, training, and accessories along with the hardware, with the total revenue for the company potentially swelling to $230 million over the full course of the contract, which lasts through 2015. Our guess is that the "throwable" robot shown off a couple of weeks back would be a good candidate for this task, though we doubt it...

See that flaming wreckage in the picture above? A laser did that, mounted on board a second vessel similarly bobbing on top of the ocean last week. Yes, even though the United States Navy told us that legitimate seafaring death rays might take another decade to materialize, basic weaponized lasers are ready today, as the 15-kilowatt gun attached to the USS Paul Foster happily demonstrates. Of course, as you'll see in the video after the break, a beam of such minimal power takes a moment to burn through even an unshielded engine and ignite the fuel therein -- once we get some 100+ kilowatt lasers up in there, we shouldn't have such problems. Test Moves Navy a Step Closer to Lasers for Ship Self-Defense By Geoff S. Fein Office of Naval Research ARLINGTON, Va. - Marking a milestone for the Navy, the Office of Naval Research and its industry partner on April 6 successfully tested a solid-state, high-energy laser (HEL) from a surface ship, which disabled a small ta...

DARPA dabbles in all matter of defense drones, and it's no stranger to leveraging the wisdom of the masses to help develop tomorrow's military machinery. The agency's latest program to go the crowdsourcing route is its Anti-submarine Warfare Continuous Trail Unmanned Vessel (ACTUV), and it wants you to help develop the software that'll control the thing. DARPA's borrowed a bit of the Sonalysts Combat Simulations Dangerous Waters game to create the ACTUV Tactics Simulator, where players complete missions tracking a target sub while navigating through and around commercial ocean traffic. Would-be captains can then choose to submit their strategies and game data to DARPA for use in shoring up the autonomous seabot's strategic submarine pursuit software. Hit the source link for a free download and dive into the sub-hunting action. The Register DARPA

Thanks to online tools like Google Translate we're now able to communicate with people in nearly any language -- maybe not perfectly, but well enough to get the general idea across, and livened up by the occasional humorous mistranslation. Now DARPA wants that done wholesale and with military precision, launching the BOLT initiative. That stands for Boundless Operational Language Translation, and DARPA is giving interested parties until May 19th of this year to submit proposals for how they'll manage to achieve the department's lofty goals, which include written and spoken translation into English of "multiple languages." If you're thinking of competing you can find all the details at the source link, though curiously you won't find a single Vorgon dialect mentioned. Wired DARPA