Hello I am the Theoretiker. In real life people call me AJ. I am from Freiburg, which is a town in the south of Germany. I am studying physics at the Albert Ludwigs University. Until yet I was very active in certain German forums, but I am on a point in my education, where I have to say, that english is such an important language, that I decided to change in an english forum for learning science in english. I want to say sorry for grammer mistakes. I am working and learning for better grammer. In the fall I will visit english courses and I hope it will change the problems. At the moment I am creating a homepage. I want make it in english, that most of the people in the world could use it. Up to now are the materials in German, but I am collecting for english stuff and will make it online soon. Because of my bad English, could you correct my language please? I would be thankful for suggestion. The url is: http://www.Physik-Diplom.de.tl In this case, thanks and for good posting ;) Greetings p.s. I quoted this Forum in the Page, that I always have it direct and other people of my courses would find to this one :) I hope it is okay. If not, I will remove it.