桃花源主, A naive question about 四大力學

來源: 於 2018-11-08 06:39:26 [舊帖] [給我悄悄話] 本文已被閱讀：次

In physics, what do you mean by 四大力學. I know Newtonian dynamics and Li Lun Li Xue pretty well in college. Are these the first two? If yes, quantum mechanics should be No. 3. What is the number 4?