The Laplace-Runge-Lenz Vector

The Coulomb-Kepler inverse square law holds some additional symmetries! 0:00 - Introduction 1:30 - Newton's 2nd Law again 2:39 - Fun with vector algebra 11:13 - The LRL vector 13:15 - Connection to the orbit 16:30 - Counting degrees of freedom 18:03 - Constraints