Airbags

Airbags

By: William Salisbury

Airbags are made manly to protect the head of the driver or passenger. The seat belt protects the torso. The airbag works by having a small controlled explosive charge going off in a crash. The airbag flies open at a speed of 300 km/h (200 mph). The bag inflating is from the explosion heating up the air, which expands to fill up the bag. When your head impacts the air bag, the air bag deflates to decelerate the head’s speed.

Airbags, seat belts, and crumples zones made car a lot safer. This is important due to it making car crashes less lethal. It also show that explosive can be used to save life the harm them, and on top of that it could inspire engineers to think of more creative solutions.

http://www.explainthatstuff.com/airbags.html