Zoom in enough and curved surface appears flat

Why aren't railroad tracks curved?

As a whole they are. You can divide the track as smaller ‘flat’ sections, much like infinitesimal sections of a circle appear flat.

So you add up x amount of flat pieces and it becomes curved when whole, got it

Pretty much. The effect of the slope/terrain is greater in short distances than the impact from the curvature of the Earth, but as a whole the tracks follow the curvature.

Why isn't the earth curved?

It is, but there are also valleys and mountains.. what’s your point?

Globlings want Earth to be curved so badly, cause then we wouldn't notice how bent there thinking is.

nou

*their

lrn2spel

Would love it if you tried to answer my or Santara’s questions from a couple pages back.