Hello everybody! My name is Enrico and I work as a Java programmer for 15+ years now. Due to the nature of a private project I'm currently working on... I start to realize I'm lacking a lot of knowlegde in Mathematics and Physics.. (afterall, programming only requires strong logic and pragmatism :) ) So here I am with a bunch of (I hope) good questions that have not yet been answered ;) Cheers. Enrico.