An anonymous reader writes "University of Virginia grad student Thomas Talhelm was living in Beijing on a Fulbright Scholarship during the winter of 2012-13, when air pollution was so bad scientists likened it to a nuclear winter. Those who could afford it were resorting to an expensive solution: air filters costing up to $1,000. Talhem built his own on the cheap, getting comparable particulate count results, and has started a company that both markets the product to middle class Chinese and shows others how to DIY."

@VentureBeat writes "Youtube pulled the original 'Rickroll' video Wednesday night. Don't worry, after a lot of email about the loss of such an important piece of cultural history, Youtube put it back up, saying that they're never gonna say goodbye to the video that's had over 30 million views."

Go Rumors has discovered that Sony recently applied for a patent on a "universal game console controller." According to the patent filing, the controller "includes a hand-holdable housing and a touch sensitive liquid crystal display (LCD) on the housing. The LCD is caused to present, depending on what type of game console a user has selected, a controller key layout for a first type of game console or a controller key layout for a second type of game console. A key layout includes plural keys selectable by a user to input commands to a game console."

Greg Huang writes "In early January, the One Laptop Per Child Foundation laid off half its staff and shed work on the Sugar graphical interface. Now, OLPC founder Nicholas Negroponte and president Chuck Kane for the first time detail the foundation's new plans, describe how the XO laptop will do what netbooks can't do, and share their hope to keep working with Sugar developer Walter Bender, who left OLPC last year."