两千四五百年前,我国的首位科学家墨翟(墨子)和他的学生做了世界上第一个小孔成像实验,并被记录在他的《墨经》中:景到,在午有端,与景长。说在端。景。光之人,煦若射,下者之人也高;高者之人也下。足蔽下光,故成景于上;首蔽上光,故成景于下。在远近有端,与于光,故景库内也。《墨经》的这段表述是人类对光直线传播的第一次科学 Twenty-five to five hundred years ago, Mo Zhai (Mozi), our country’s first scientist, and his pupils made the world’s first experiments on small holes and were recorded in his Book of Ink: Afternoon there, with King length. Said at the end. view. The light of the people, Xu Xu if shot, the next person who is high; high person who also. Foot under the light, it Chengjing on; the first shield on the light, so into King next. In the near end, with the light, so King Gallery also. The passage of the Book of Ink is the first science that human beings spread to the light