action principle Inherent ability = difficulty * accomplishment. by Invariance, MDASHF i@M Posted on February 16, 2017December 1, 2018
action principle Blackholes and the Action Principle. by Invariance, MDASHF i@M Posted on September 9, 2015September 30, 2018
action principle Optical Path and Fermat’s Principle. by Invariance, MDASHF i@M Posted on October 10, 2013May 25, 2020
author Least action principle and principle of equivalence … by Invariance, MDASHF i@M Posted on June 15, 2012September 7, 2018