You are unique. This is one of the more obscure ways you're unique: An alternating current of different frequencies running through you causes a reaction that's noticeably different from anyone else's. Researchers from Dartmouth University are trying to put this difference to use by creating wearable electronics that respond to--and only to--their intended user.
According to Jaunted, the TSA has begun rolling out a new style of body scanner to select airports that will hopefully have the effect of maintaining security while reducing the "random TSA agents in some dark room are seeing me naked" problem the current scanners struggle with.
The holidays are here again, and with them all the usual trappings: joy, good cheer, and the crippling fear that someone might be harboring explosives in his or her nether regions. But don’t let the TSA bogart all the intrusive holiday fun; you can build your own handheld microwave body scanner at home, ensuring the safety of your holiday guests. All you need is a feedhorn for a satellite dish, an optical mouse, and a handful of other low-cost parts.
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.