For example, when fourth-grader Lin Chen read the stories of Bi Sheng and Edward Jenner in her Chinese textbook, she spent the whole time wondering what the movable type Bi Sheng invented looked like, and why Jenner didn't invent a vaccine which didn't leave scars.
今年就讀國小四年級的林辰就是一個例子，她在國語課本裡讀到畢升和金納的故事時，一直很疑惑畢升發明的活字排版會是什麼樣子？金納為什麼不發明無疤痕的牛痘？