Here's a 3D animation demonstrating the strong coupling constant concept in quantum chromodynamics (QCD) using Three.js for 3D rendering and Cannon.js for physics:

Here's an enhanced version with better visualization of the strong coupling constant effect:

Here's a simplified and more visually focused version showing quark confinement with better visualization:

This version focuses on:

1. Two quarks (red and blue) connected by a gluon field
2. Visualized as a glowing yellow tube that stretches as quarks separate
3. The force between quarks increases with distance (non-linear)
4. Interactive - you can drag one quark with your mouse
5. Shows real-time distance and force measurements
6. Simplified physics to clearly demonstrate confinement