How Many Protons Are There in a Star?

I always felt, well going back to my own teenage, that I was just interesting asking questions about the world around me. So I set up this experimental idea of trying to run in groups teaching in an adult education centre in London. But equally, I think I always make the case when we're doing shows like this. If people ask us a question and we don't know the answer, because at the end of the day the reason scientists are employed as scientists is because we don't have all the answers. Often the answer I don't know is as valuable because you can then use it to explain to people how we might go about working it out.