Action
Action describes energy summed up over the time a process lasts (time integral over energy). Its dimension is the same as that of an angular momentum.
- A phototube provides a voltage measurement which permits the calculation of the quantized action (Planck constant) of light. Also see photoelectric effect.
Read more about this topic: Measuring Instrument
Famous quotes containing the word action:
“An action is the perfection and publication of thought. A right action seems to fill the eye, and to be related to all nature.”
—Ralph Waldo Emerson (1803–1882)