Mike chats to a garbage king, shows off his rubbish, and learns about shrinking bears.
1/3 Cecil Balmond takes the listener on a journey into the history of numbers. Symbols.
Vint Cerf Pt 1, technology in neuro-rehabilitation, internet dating in Africa & India
2/2 Illegal ivory trade, farmers, climate change - a perfect storm for Africa's elephants?
Honeybee disappearance; Swapping mitochondrial DNA; Multitasking causes brain mayhem.
The Danish island of Samso has completely eliminated dependence on fossil fuels, and no...
Afghan elections online, Cybermentors, Iranian computer games, Italian wine technology
Artificial life;Buenos Aires waiters' super-memory;subconscious vision;Walking in circles
Richard Scrase looks at the largest seed store in the world.
1/2 African elephants are threatened by a new surge in the illegal ivory trade.