Action (physics)
In physics, action is an attribute of the dynamics of a physical system. It is a mathematical functional which takes the trajectory, also called path or history, of the system as its argument and has a real number as its result. Generally, the action takes different values for different paths. Action has the dimensions of •, and its SI unit is joule•second. This is the same units as angular momentum.
Read more about Action (physics): Introduction, History, Mathematical Definition, Euler–Lagrange Equations For The Action Integral
Famous quotes containing the word action:
“There is not a Musselman alive who would not imagine that he was performing an action pleasing to God and his Holy Prophet by exterminating every Christian on earth, while the Christians are scarcely more tolerant on their side.”
—Denis Diderot (1713–1784)