Kansas flat as a Pancake?
906
Published 2017-08-03
It does not. The pancake is pretty thick, they used geodesic data (which is the study of the sphere earth), and most of all: they used elevation: above sea level. Totally ignoring the earths curvature.
If you take the curvature into account, and use a nice thin pancake, it turns out the pancake is about a factor 5 times flatter.
Source: www.improbable.com/airchives/paperair/volume9/v9i3…