Unmanned aerial vehicles (UAVs, also known as drones) are a good way to gather data. UAVs can be as simple as a kite or balloon rigged with a camera or as complex as this one, a micro air vehicle that may help search-and-rescue operations.
Unmanned aerial vehicles (UAVs, also known as drones) are a good way to gather data. UAVs can be as simple as a kite or balloon rigged with a camera or as complex as this one, a micro air vehicle that may help search-and-rescue operations.