What is Seat belt?
{{nosources|date=June 2009}} A '''seat belt''' is a strap that holds a person into his or her seat in a [[car]], [[truck]], [[aeroplane|plane]], or other [[vehicle]], so that in a crash he or she would not be [[:wikt:injury|injured]] or [[death|killed]] by flying forward and hitting parts of the vehicle or being thrown out of it. They are helpful in saving lives in car accidents. In 1946, a doctor in [[Pasadena, California]] proposed better seat belts than what were used then. In 1955, several improved seat belts were patented. Automobile manufacturers sold many more cars with such seat belts, starting then. Eventually, laws required cars to have them. {{stub}} [[Category:Safety]]