Proofs that Earth is not flat?
18209
What is the simplest way to prove the Earth is round?
149543
Prove that an annulus is not simply connected?
74875
Do we know if there exist true mathematical statements that can not be proven?
79727
Direct proof of non-flatness
27933
Show that unit circle is not homeomorphic to the real line
7742
Gravitation is not force?
145466
Is this a valid mathematical proof?
14177
Is it possible to prove that planets should be approximately spherical using the calculus of variations?
145010
Can we see shape of normal curve somewhere in nature?
43941
Does Earth really have two high-tide bulges on opposite sides?
48495
Is it possible to prove the independence of the parallel postulate without non-euclidean geometry?
30425
How do we make symmetry assumptions rigorous?
25874
Showing that a certain map is not flat by explicit counterexample
22584
Can we prove that a statement cannot be proved?
24480
Can there be true conclusions without assumptions?
29426
Is there a proof of existence of time?
133388
Why centrifugal force (not centripetal force) is considered while deriving the effect of rotation of Earth on "g"?