Hi everyone, I'm a new member and a proud nerd besides. And in the best, time-honoured traditions of a new nerd greeting a large nerd tribe, I would like to describe one of my nerdiest and most treasured possessions: I still have the solar-powered TI scientific calculator which I bought in my final year of high school. It still works today, it's never let me down. I still use it and I'm now 46 years old. I am partly educated, mostly Australian and usually confused. Best wishes to all nerds as you go about your excellent work.