一个稍具文明史常识的人，都知道中国古代的四大发明，即指南针、造纸术、火药和印刷术，其中活字印刷术,是宋朝毕昇发明的，被誉为人类的“文明之母”。然而，至少在1943年英国科学家李约瑟来中国前，我们国人...
A slight civilization of common sense, all know the four great inventions in ancient China, namely, the compass, papermaking, gunpowder and printing, the movable type printing, were invented by the song dynasty used is known as the "mother of the civilization of human beings. However, at least in 1943 British scientist Joseph Needham before coming to China, we Chinese people...
