Greg Bryant, a Los Angeles entertainment engineer, started out in movies and now works mainly with theme parks as a consultant on ride safety. He discusses the forces acting on someone on a roller coaster and explains the need to consider safety and comfort while maintaining the thrill of the ride. He explains his proudest achievement was designing a wrap-around sign in Times Square which displayed his name.

This clip could be used to illustrate some of the factors that need to be considered when designing products. The class could discuss how developments in technology, safety and scientific principles have influenced the design of the roller coaster. They could work in groups to discuss and investigate the question ‘what makes a good roller coaster?’ Students could also compile a list of the health and safety implications which should be considered when designing a ride.