If you haven't seen it yet, you've got to check out the homemade gaming rig recently built by staff photographer/DIY madman John B. Carnett and How 2.0 editor Mike Haney. Taking a salvaged PC running the MAME emulator and sticking it into a beautiful welded-steel table begat a 200-pound behemoth capable of running all the old school games you can can handle.
Currently, the rig is still sitting in the evil batcave/laboratory of Mr. Carnett in Philly, but it's rumored to be making its way back to PopSci HQ soon—good thing, because I'm pretty eager to school everyone here in Dig Dug (and post some pictures to prove it). See how you can build your own here. —John Mahoney
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.