Nature creates round objects all the time (stones in a river, a hedgehog in a ball,...), but the principle of an axle is not found as far as I know.

you are viewing a single comment's thread
view the rest of the comments
[–] 1 point 2 months ago (1 child)

I would argue that's more due to the up-down and front-back limited rotations combining to form a circular mode, kinda like a Cartesian to Polar coordinate mapping

  • source
  • parent
  • hideshow 1 child comment