Airbags
John W. Hetrick of Newport, Pennsylvania, USA invented the first airbag in 1952. He patented this new device in 1953. Nowadays, airbags are also called Supplementary Restraint Systems (SRS) or Supplemental Inflatable Restraints (SIR). Airbags are designed to complement the seatbelts in case of a collision. The airbag is very useful and approximately 400 lives [...]