How Does an Airbag Beat the Crash?

An airbag has about a twentieth of a second. A chip feels the car stop, a computer decides to fire, and a can of solid fuel burns into a cloud of gas that fills the bag in about 30 thousandths of a second: three times faster than a blink. 00:00 A bag from nowhere 00:33 The sensor, the decision, the fuel 01:20 Vents, seat belts and the back seat 02:06 John Hetrick and Allen Breed 02:31 Six airbags or more Hidden Machines opens up everyday things to show how they really work. #howitworks #engineering #carsafety