Full Idea
The concept of energy was introduced into physics precisely to make possible the application of the 'store of potency' paradigm in cases like the contact of billiard balls, since the moving ball is clearly an agent of change.
Gist of Idea
Energy was introduced to physics to refer to the 'store of potency' of a moving ball
Source
Harré,R./Madden,E.H. (Causal Powers [1975], 6.IV)
Book Reference
Harré,R/Madden,E.H.: 'Causal Powers: A Theory of Natural Necessity' [Blackwell 1975], p.115
A Reaction
I find this to be a hugely revealing little observation. For years the nature of energy has bothered me, and I have been struck by the active character of nature. I am beginning to understand the world!
Related Idea
Idea 15266 We say the essence of particles is energy, but only so we can tell a story about the nature of things [Harré/Madden]