Origin [edit]. The systematic use of belt color to denote the rank was first used by Kano Jigoro, the founder of judo, who first devised the colored belt system using obi (sash), and awarded the first black belts to denote a Dan rank in the 1880s. Previously, Japanese Koryu instructors tended to provide certificates.
Everything for a safe and comfortable trip. Air safety is the theory, investigation, analysis, and categorization of flight failures (aircraft incidents and accidents), and the prevention of such failures through regulation, education and training.
Guide to Air Rifle Safety. Page 6. tion and see that the gun is loaded with a cartridge or pellet, the cartridge. or pellet must be removed to make the gun safe. 3. With the muzzle pointing in a safe di-. rection and the action open so that the. gun cannot be fired, the third safety.