Our Changing World for Thursday 31 March 2011

9:50 PM.In this web only extended interview, Catherine Mohr continues to discuss the Da Vinci surgical robot. Read more Audio

9:46 PM.Matt Golding and his team demonstrate a prototype 3D printer which uses batter instead of ink Read more Audio

9:34 PM.Gary Wilson takes a sensitive gravity meter into the field in Antarctica to measure very tiny differences in gravity Read more Audio

9:20 PM.Catherine Mohr describes how the Da Vinci surgical robot has changed keyhole surgery Read more Audio

9:06 PM.How melanoma rates in New Zealand compare to Australia, are sun protection messages working, and new metabolic drugs Read more Audio