Therese Chen reports on Fairy Wren passwords (2012),v Chris Stewart interviews Sir Isaac Newton (2003) Tim Baynes reports on fish poison, molecular machines and kidneys, (2003) Chris Stewart reports on the life and science of Edward Teller,(2003) Arwen Cross, Julie-Anne Popple and Ian Woolf discuss military walking robots (2012) Hosted and Produced by Ian Woolf Support Diffusion by making a contribution Support Diffusion by buying through affiliate links