Autonomous drone can detect and follow scents

Today's Video of the Day from the University of Washington features the "smellicopter," an autonomous drone that can detect and follow scents. The robots will ultimately be used to explore unstable structures after a natural disaster or to search a region with unexploded devices. The drone uses a live antenna from a moth to navigate toward smells, dodging obstacles as it travels through the air. "Nature really blows our human-made odor sensors out of the water," said study lead author Melanie Anderson. "By using …