Full Idea
Inside a proton the quarks are rushing around like caged animals, free to move until they push against the bars to try to escape, when the gluons pull them back in.
Gist of Idea
Quarks rush wildly around in protons, restrained by the gluons
Source
Gavin Hesketh (The Particle Zoo [2016], 04)
Book Reference
Hesketh,Gavin: 'The Particle Zoo' [Quercus 2016], p.96
Related Idea
Idea 17563 The strong force pulls, but also pushes apart if nucleons get too close together [Inwagen]