Why you'll be eating quantum dots twenty years from now

One day, your doctor may tell you to eat two teaspoons of quantum dots and call her in the morning. Well, sort of. Quantum dots are ultra-tiny chunks of superconducting crystal, whose electronic properties can be fine-tuned depending on just how tiny they are. They're used in a variety of applications, including… » 5/21/12 4:00pm 5/21/12 4:00pm