A cyclist is used as an example to explain what air resistance is. Drag is mentioned. Two ways to reduce air resistance are stated: reducing the area in contact with air (by the cyclist ducking down or cycling behind someone else) and by being more streamlined (wearing smoother surfaces or a more streamlined helmet).

First broadcast:
25 March 2003

Students could use this clip to look at what air resistance is and how it can be reduced. The clip also looks at aerodynamic design.