Good question, I don´t really know myself but googleing it wold be cheating...
Its a theary that, if true, would explaing why Einsteins theory of relativity works perfectly in macrocosm but not in microcosm... it states that there are at least ten dimensions but we humans can only see three (four if you count time)... thats all I know fore sure...
I just remembered seeing a fantastic youtube video that explains the ten dimensions... its only ten minutes long and will blow your mind...
http://de.youtube.com/watch?v=JkxieS-6WuA
http://de.youtube.com/watch?v=ySBaYMESb8o&feature=user
Who will be the next president and why (and don´t just write: "Because he got more votes." explain what gives him the edge) ???








