The word “innovation” was long synonymous with the IT programmers of Silicon Valley or the design engineers of Tokyo. But the world is changing fast and now the latest designs, products and ideas are as likely to come from Accra or Nairobi as from the U.S. or Far East. Africa’s innovative and entrepreneurial spirit is taking on the world – whether it is apps for farmers, medical diagnostic devices, cleaner cooking fuel or new seed varieties, exciting advances are being made every day across the continent.