=== the structure of science revolution mp4 ===
'''一个新的科学体系的发展历程：一个新的科学体系的替换发展历程：'''Normal Science(puzzle solving stage)→ Anomaly(set a problem and begain to modify paradigm) → Crisis(shake the faith in previous paradigm) → Change in world view → Pre-paradigm → New paradigm (finally became nomal science) '''the scientific method''':(when studying one specific question) ask an question → do background reaserch → construct a hypothesis → test your hypothesis by doing experiments→ analyze your data and draw a conclusion → report your result whether your hypothesis is right or wrong
=== the road since structure(前两章) ===