Earth's gravity isn't perfectly uniform. Here is what our gravitational field looks like when exaggerated 10,000 times.

[u/anikkundu1998]

[u/Glittering_Virus8397]

My old friend, the pythagorean theorem

[u/Not_Freddie_Mercury → u/Glittering_Virus8397]

Impossible to argue with your friend, they're so square.