BS: I was going to ask about interactivity and fun but I think we've covered that.
SB: I think it helps people to - feel part of it. If you're listening to something you can sort of doze off and think "Oh that's nothing to do with me." But if you actually have to pick something up and turn it round or, you know, do something with it you will, you'll feel that you are - part of it and you will remember it. Hopefully you'll enjoy it more as well. It's essential. Doing is essential - part of Techniquest, you know. Definitely - not just for children.
((Interruption when BM arrives. Interview paused and microphones changed))