Swarming robots keep teeth clean
Researchers develop magnetic nanorobots for hands-free flossing and brushing
Locust swarms can inflict damage of biblical proportions. According to U.N. estimations, a swarm of one square kilometre can eat the same amount of food in one day as 35,000 people. Apocalyptic pests aside, these swarm dynamics have inspired a new class of nanorobots.