11.50 Calculus: the Directional Derivative
For science the programme uses the common features of contour maps, heat flow, and electrical conduction, as an introduction to vector calculus.
12.15 IATA: Tel Aviv Negotiations
The second of three programmes on the International Air Transport Association explores how negotiations with a major airport are carried out for an increase in landing charges.
12.40 Managing the Desert Margin This shortened version of a World About Us programme looks at the way of life of people living at the edge of the Sahara and how that way of life is changing due to political and economic forces.