Greetings to all, Aule Mar here, may be kinda unique to your group here. I live in the US and recently retired. I have a BS and a MS in nuclear engineering, and like most engineers early in my career I did a lot of real-world engineering (running calculations, writing FORTRAN code doing simulations and some real research) but for most of my career I was a manager. Now that I'm retired I would like to do get back too the work I enjoy and that is solving interesting problems, and getting caught up on new discoveries (and understanding them) in nuclear and astro physics. Glad to help when I can, and I'm sure I'll have lots of basic questions.