Flying Robots

Ted Talk: Vijay Kumar: Future of Flying Robots
Despite a few small grating moments ("climate change" which is not specifically called anthropogenic, so no biggie, and a PC instance of using the female pronoun for a non-gender-specific person) this is an excellent demonstration of making small, fast, smart, and clustering flying bots. Positive uses are demonstrated, like mapping out an orchard. You can imagine other uses on your own.