That's it! They remind me of old school bubble chambers used in particle accelerators. Momentum carrying things mostly in one direction, but every now and aga

That's it! They remind me of old school bubble chambers used in particle accelerators. Momentum carrying things mostly in one direction, but every now and again something just coils inward until it runs out of energy. https://media.sciencephoto.com/image/a1380122/800wm/A1380122-Subatomic_particle_tracks.jpg https://media.sciencephoto.com/image/a1380122/800wm/A1380122...