Science+Notes+67

__Why should we wear seatbelts?__ · http://www.co.boulder.co.us/transportation/traffic_safety/seatbelt.htm
 * they protect you from flying forward
 * they help you stay seated
 * The National Highway Traffic Safety Administration estimates that seat belts save 9,500 lives in the United States each year. It also estimate that 9,000 lives would be saved if people wore their seat belts.
 * Seat belts were invented by George Cayley in the 1800s. Edward J. Hock invented the safety belt first used by the Ford Motor Company as standard equipment.
 * http://en.wikipedia.org/wiki/Seat_belt