阿基米德从小就非常喜欢数学,他的好朋友柯伦也是一个数学迷,他们经常在一起画几何图形,推导公式,进行演算,他们还喜欢设计一些机械图形。这样就需要大量的纸,可是当时还没有发明造纸术,人们便用羊皮和莎草代纸,既昂贵又不方便使用。柯伦经常抱怨说:“天啦,上哪儿去,找纸啊!” Archimedes liked mathematics very much. His good friend Curran is also a math learner. They often work together to draw geometrical figures, deduce formulas and make calculations. They also like to design mechanical drawings. This required a large amount of paper, but at that time no papermaking was invented. Instead of using paper, it was expensive and inconvenient to use paper instead of paper. Curran often complains: “God, where are you going and looking for paper!”