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:
“The action of the soul is oftener in that which is felt and left unsaid, than in that which is said in any conversation. It broods over every society, and they unconsciously seek for it in each other.”
—Ralph Waldo Emerson (1803–1882)