1998年5月初,专程来北京参加北大百年校庆活动的1997年诺贝尔物理学奖得主、华裔朱棣文教授,作了题为《与生物学相结合的原子物理学》的报告。演讲时,朱教授向近千名师生展示了一段极其精彩的科学实验录像。人们看到一个折叠的脱氧核糖核酸分子(DNA)先被轻轻地拉直,而后又被松开,伸展的长链逐渐卷曲,恢复了原来的模样。实验构思之巧妙、技术之 In early May 1998, a special report entitled “Atomistic Physics Combined with Biology” was delivered in 1997 by Professor Ng Chu-wen, a Nobel Prize winner in physics who came to Beijing to attend Peking University Centennial Celebration. During his speech, Professor Zhu showed a wonderful video of science experiments to nearly a thousand teachers and students. People see a folded DNA (DNA) first gently straightened, and then was released, stretching the long chain gradually curled back to its original appearance. The clever idea of ​​the experiment, the technology