Difficulty understanding Ribbon Renderer in Emitters

I’ve been messing around with Niagara Emitters (haven’t messed with Niagara Systems yet), and I’m trying to understand to core concepts of the renderer options (light, mesh, ribbon, sprite, etc.).

I played around with the dynamic beam’s default settings, and noticed “Spawn Burst Instantaneous” has a default “Spawn Count” of 100. I can’t see it if the spawn count is 1, it’s extremely thin at 2, and at 3 it’s finally visible (screenshots attached).

I must be missing some kind of fundamental knowledge and I don’t know what keywords to use in my search queries… (I’ve tried searching stuff like: “UE5 draw ribbons”, “UE5 ribbon fundamentals”, “UE5 how exactly do ribbons work in emitters”, “UE5 niagara emitter basic tutorial”, etc…)

My question is: how is a ribbon drawn in ue5? What exactly am I looking at?

ribbon Spawn Count = 1 (below)
ribbon 001

ribbon Spawn Count = 2 (below)
ribbon 002

ribbon Spawn Count = 3 (below)
ribbon 003