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.

First broadcast:
11 June 2009

Could be used to demonstrate the practical application of engineering. The class could discuss how several factors, such as developments in technology, safety and scientific principles, each individually influenced the design of the roller coaster and what happens when there are conflicting requirements, for example with cost. Students could then research other real world products to identify the factors that have contributed to their design, and how the designs were evaluated against these considerations.