As in other martial arts, Capoeira uses a ranking system for recognition of the capoeira studentsâ knowledge. The capoeira ranking is presented in a form of belt (cordao) cordÃ£o based on the colors of The brazilian flag/and or (nickname). apelido
Air medical services. Air medical services is a comprehensive term covering the use of air transportation, airplane or helicopter, to move patients to and from healthcare facilities and accident scenes.
A quadcopter, also called a quadrotor helicopter or quadrotor, is a multirotor helicopter that is lifted and propelled by four rotors. Quadcopters are classified as rotorcraft, as opposed to fixed-wing aircraft, because their lift is generated by a set of rotors. Quadcopters generally use two pairs of identical fixed pitched propellers; two clockwise and two counterclockwise. These use independent variation of the speed of each rotor to achieve control. By changing the speed of each rotor it is