Factual series explaining all the mysteries of the world of science in BSL! In this episode, Professor Knowitall and his sidekicks Dr Spark and Dr Bright explain how an object as big and heavy as an aeroplane stays in the sky! Dr Spark gets sent to a swimming pool to show how the rules of aviation apply under water, as well as up in the air, then later goes to look at a glider in a field. Meanwhile, Professor Knowitall performs experiments that show the role of resistance and how 'drag' helps planes fly. Aimed at children of Key Stage 3 level. Don't miss it!
Arnold, Camilla (I)