ditto all the above....sadly there are too few teachers of such calibre. When I as a student was lucky enough to encounter such a teacher, the results were simply astonishing. Good teachers ultimately draw more out of their students than the students realize they have in them, and that, IMHO, is the essence and goal of teaching (I think I am repeating myself...sounds like something I said in a thread about favorite teachers some weeks back, anyway....).

I wish my kids had the benefit of your instruction...hell, I wish I did....building a planet sounds like fun.

Regards, Neil