Tim received his doctorate in physics at the University of Melbourne in 1987 by studying the effects of gravity on electrons in metals. Since this time he has worked for the CSIRO in a number of guises, including x-ray physicist, semiconductor fabricator, machine vision expert, electronics engineer, micro-controller programmer, numerical modeller, atom optician, micro technologist, theoretical physicist, manager and nano optics expert. But he really likes to understand what makes the universe tick and thinks about the fundamental nature of light and matter. He has developed a handheld biosensor that can detect avian influenza and other biological "nasties" and is looking at ways of manipulating light at the nano-scale. He currently holds a Technology Fellowship at the Melbourne Centre for Nanofabrication as well a various honorary positions at the University of Melbourne and Swinburne University of Technology.