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.
MUMBAI: Air India has been rated the world's third-most unsafe commercial airline by a German airline safety think-tank in a ranking that was debunked by the national carrier. Among the 60 carriers featured in the listing released last week, Helsinki-based Finnair was graded the safest and China Airlines the least safe.