开普勒运动的“不变性”

Invariance of Kepler motion

从开普勒三定律出发,分析这类运动中的守恒量。论证三定律,并分析定律内容的内涵,提出角动量守恒、机械能守恒,隆格-楞茨矢量守恒,并由三定律出发推导万有引力的二次方反比规律,结合牛顿第二定律,证明了万有引力定律。

Starts with Kepler three laws,and an alyzes the conservational quantity in this kind of motion.Demo-nstrates three laws and analyzes the meaning of its content,puts forward momentum conservation,mechanism energy conservation,Runge-Lenz's law vecter conservation.And more explains physical principle's universal applicability.Consequences gravitaion square inverse ratio law by Kep ler three laws and proves gravitatio n law connecting with Newton second law.