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                                                                A rescue robot helps an                                    myNotes
                                                                emergency crew.





















               Drones                                           Rescue Robots


               A drone is an unmanned aerial vehicle (UAV) or, in   Robots aren’t a new invention, but recent
               essence, a flying robot. Drones come in many     advances in robotic technology have allowed new
               shapes and sizes and can be used to transport    types of robots to perform a variety of search-
               anything from weapons to pizzas.                 and-rescue functions.
                   The increasing use of drones is controversial,   For example, in Japan, where massive
               for reasons of both safety and ethics. Some      earthquakes are a constant risk, rescue robots use
               naysayers worry about midair collisions or drone   ultrasonic sensors that detect sounds beyond the
               crashes on busy streets. Others object to the way   limits of human hearing, and infrared cameras
               drones are used in warfare.                      that can detect body heat to locate humans
                   Despite these legitimate concerns, drones    trapped at disaster sites. The bots then load the
               have many positive uses. In the wildfire-prone   victims onto carts and transport them to safety.
               western United States, for example, drones are       As their name suggests, snakebots are robots
               used to spot and fight fires. Not only can drones   that look and move like snakes. They have been
               battle forest fires, but they can also replant   used at various disaster sites around the world,
               deforested areas. One company plans to use       slithering through difficult terrain to search for
               drones to plant one billion trees per year.      victims, gather information, and even deliver
                   Drones are also helping to protect           emergency supplies.
               endangered wildlife. In Indonesia, drones monitor
               the Sumatran orangutan population. And, in East
               Africa, drones spot poachers who illegally hunt                            A snakebot can explore
               elephants and rhinos.                                                      difficult terrain.
                   Perhaps drones’ most useful purpose is
               helping sick and injured people. About eight
               million people worldwide lack access to basic
               medical care. Now, several organizations are
               making plans to use drones to deliver emergency
               and medical supplies to communities in need.


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