
9-Volt Nirvana
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Learn a new language faster than ever! Leave doubt in the dust! Be a better sniper! Could you do all that and more with just a zap to the noggin? Maybe. Sally Adee, an editor at New Scientist, was at a conference for DARPA - The Defense Advanced Research Projects Agency - when she heard about a way to speed up learning with something called trans-cranial direct current stimulation (tDCS). A couple years later, Sally found herself weilding an M4 assualt rifle, picking off enemy combatants with a battery wired to her temple. Of course, it was a simulation, but Sally's sniper skills made producer Soren Wheeler wonder what we should think of the world of brain stimulation. In the last couple…