The warmhearted story of Polish immigrant and mathematician Stan Ulam, who moved to the U      S       in the 1930s       Stan deals with the difficul t losses of family and friends all while helping to create the hydrogen bomb and the first computer       　　波兰科学家乌兰姆于上世纪30年代移居到美国，他在帮助科研团队制作氢弹的过程中，他还要处理和面对一些个人得失