Whoah, whoah - slow down a little here.

[ he'll hold up his hand to cut him off, shaking his head slightly as he does. ]

I'm not really - I mean, I can teach you that sort of thing, I'd be happy to, but it's not exactly my specialty? So we might have to ask around if you manage to stump me. And we're going to need a microscope - probably a pretty decent one, if you're wanting to look at stuff up close like that. Can I see the books you brought?

[ tadashi is so baffled by this request, but he hardly seems put out. ]