Google's new tech: A contact lens for diabetics
It tests your glucose levels by monitoring your tears. I'm not diabetic, but the tech here sounds like something out of Star Trek — "chips and sensors so small they look like bits of glitter, and an antenna thinner than a human hair." For power, it generates static electricity from ambient radio waves. I won't be in the market for one, as will be the case with most of us, but you've got to stop for a moment and think: How cool is that?
Tip o' the hat to NPR.