Principle of Least Action
http://edu-observatory.org/olli/Action/Week1.html

   KINETIC ENERGY  T = KE
  
   KINETIC ENERGY, like position and velocity is NOT absolute.
   
 
 

   POTENTIAL ENERGY  V = PE
  
 
 

   LAGRANGIAN MECHANICS   L = T - V
  
  
  
 

  Action Principals 
    https://en.wikipedia.org/wiki/Action_principles
    
  THIS SINGLE PRINCIPLE THAT UNDERPINS ALL OF PHYSICS | VERITASIUM
    https://www.youtube.com/watch?v=Q10_srZ-pbs  (33 min)



   ACTION PRINCIPLES (Nature obeys an optimization principle)
  


    WHY USE THE PRINCIPLE OF LEAST ACTION
  


  SIMPLIFIED REVIEW OF LEAST ACTION - CLASSICAL MECHANICS (NEWTON)
    https://www.youtube.com/shorts/dd7IxLt2zvA  (1 min)
    https://www.youtube.com/shorts/Z7WhE6kTR3s  (2 min)

    


   ACTION PRINCIPLES (Nature obeys an optimization principle)
  



  
  



 
    sam.wormley@icloud.com