NYC

Perhaps Sony deemed the Ultimate Weapon too powerful (or too expensive) for PlayStation 3 owners, but these new wireless cans ought to keep your ears warm, at the very least. The new official PS3 Wireless Stereo Headset features 7.1 virtual surround sound, a retractable, mutable microphone, and standard embedded volume controls. These proprietary sound-muffs connect via USB dongle, and push headset related status updates (that's your battery status) directly to your TV screen; if you're into that sort of thing. Sony-approved hearing will set you back $100 starting this September. Sony

Normally, if a grown man talks about building a fusion reactor and wants your 13-year-old to hang out in his garage, we'd expect you to smile, back away slowly, and perhaps alert the authorities. But, if that man is Microsoft program manager Carl Greninger there's no need to run. The science fanatic recruited a team of teens, as young as 13, and worked with them to build a Farnsworth–Hirsch Fusor -- a (comparatively) simple nuclear reactor that smashes together atoms and produces neutrons. Check out the nearly 20-min video after the break to watch a bunch of high school kids generate ball of ionized plasma. And to think, all that's in your garage is that '65 Mustang you  swear  you're gonna restore one day. Channel 9

HP wants to make sure you don't get burned, literally. For the third May in a row, it's issuing another expansion of its voluntary battery recall on laptops produced from July 2007 to May 2008 -- frankly, we're considering a holiday to mark the occasion. May 2009 saw a recall of 70,000 batteries followed by an expansion to cover 15,000 in China, totaling 85,000 affected laptops. It didn't end there though, as further expansion was put in place during May 2010 to cover even  more  models, and this time around, a sizeable number of lappies have been added to the ever-growing list. About five percent of the models from the aforementioned time frame could have problematic batteries, and HP will be providing replacements for those at risk of getting a little too hot under the collar. If your machine was also part of the previous recalls, HP's saying those should be verified as well, even if you've done so in the past already. The full grid of affected laptops can be