Here are some answers to questions you always wanted to ask - and a few more. In tonight's show the question is asked how can aeroplanes fly upside down, a group of aerobatic pilots are enlisted to explain why. And the British scientists who have developed a super-tomato which will stay fresh longer, even when picked ripe to maximise the taste, explain how it's all done by genetics. Presented by Desmond Lynam and Jenny Hull.
Producers Martin Lucas and Gill Stribling-Wright Executive producer Alan Boyd