Although important nuclear physics work was to go on in laboratories such as ours had become - and we had to cut down to a lower energy group - it was not fundamentally opening up new insights on the structure of matter. That required you to be in a higher league.

In the tail above the giant resonance, you can get not just one neutron emitted but two, three, four or five, and so there are a lot of things one can measure, looking at the competition with the emission of neutrons and protons and so on.

I had some vague memory of visiting Canberra as a lad, when we came up with my father by car. But when I made the long train journey from Sydney to Canberra and arrived at the little stop, I did wonder slightly whether this really was the national capital.

Being appointed Elder Professor meant very much taking over the shop, in that the professor in those days controlled all the moneys.

I think computer science, by and large, is still stuck in the Modern age.

I have dedicated my life to answering the great scientific questions of our time and to the incredible adventure of space exploration.

I have so many favourite science fiction films. I would say 'Alien' and 'Aliens' are two of my favourite sci-fi films. Also 'Children of Men' would be one of my favourite science fiction films. I love the original 'Solaris' and the remake. And even though it wasn't a film, the series 'Battlestar Galactica' was one of my favourite TV shows.

Science is beautiful when it makes simple explanations of phenomena or connections between different observations. Examples include the double helix in biology and the fundamental equations of physics.