This Way Up for Saturday 10 November 2012
Dr Roger Harker and Jason Johnston of Plant and Food Research are trying to work out why people like some apples more than others.
Erika Janik's written a global history of the apple. Also, Professor Julian Heyes of Massey University on New Zealand's hottest apple varieties, and how they get protected from counterfeiters.
Sanjit 'Bunker' Roy is training illiterate African grandmothers to be solar engineers at his Barefoot College in India.
Hugh Robertson is one of the authors of The Field Guide to the Birds of New Zealand.
Fran Ashcroft explains the crucial role that electricity plays in the human body. So how do we generate power from within?