BS: Has the national curriculum always featured heavily in what you've done?
DB: For schools, yes. I think, if you're going to attract school groups down here - now you want to entertain people you want to give them fun you want to get science across. But if you can't get them in here in the first place, that's not - that's not going to work. So the national curriculum for schools any schools performance, is where you have to start and you have to link the things in to the national curriculum. So all schools presentations, workshops, planetariums, all relies heavily on what's in the national curriculum. I'm not saying we stick rigidly to that because usually we go beyond what is in the national curriculum. So if it says - I think in Light and Colour it says something like - you know - darkness is an absence of light. Well all you need to do is put them in the Science Theatre switch the lights off and that's the end of the show. But, what we try to do is then is actually expand, on those particular ideas and give them extra things over and above the curriculum, but making sure the national curriculum is the basis of what we do afterwards. So we might expand on it, but you have to cover the - I'm not saying we cover every point but cover the main points, that are in the national curriculum for that particular theme, whether it's Forces or Light and Colour or anything like that. But I think that has to - feature heavily to get schools into the building - to do - anything else you want to do with them, you know.