Mohammed had come up with a very cool "Atom Train" animation using Xara 3D.
I wanted to try something similar in Blender.
Though it seems like it would be a nightmare, it was actually very easy to animate the parts. Each animated group needs just two keyframes. One at rest and then one at the end of some rotation, 60° (the green/silver mirror spheres), 180° (green spheres, "rainbow" spheres, and center sphere). Change extrapolation (in Graph Editor) to Linear.
Peace
James
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