Nano-science has apparently come up with a potential successor to the lightbulb. You know, those round glass things GE keeps making with shorter and shorter lives as electricity gets more and more expensive? Perhaps you've noticed leds in turn signals and traffic lights. Now, thanks to nano-wizardry every home could have not just one but billions:
Take an LED that produces intense, blue light. Coat it with a thin layer of special microscopic beads called quantum dots. And you have what could become the successor to the venerable light bulb.
The resulting hybrid LED gives off a warm white light with a slightly yellow cast, similar to that of the incandescent lamp.
Note in the whole article the interesting use of the word "magic". As in "any technology sufficiently advanced is indistinguishable from magic". Keep waving that magic wand, electrical engineers. Before too long our electric bills will be down to zero like our phone bills.