13:46 <queqiao-> ⟨charon_s.⟩ https://matrix.mockingbirdnest.com/_matrix/media/r0/download/matrix.mockingbirdnest.com/aNKbKDjBbBzXaMEljFyChdFr/GeopotentialFix.png

13:46 <queqiao-> ⟨charon_s.⟩ Hi egg egg, do you remember that we once discussed on the inaccuracies of irregular gravity fields? (https://discord.com/channels/319857228905447436/480397772248580098/1192066962294046781)

13:46 <queqiao-> You said: "Of course nothing is going to happen in Principia [...] informed discussion can be interesting."

13:46 <queqiao-> The friend of mine had came up with a simple and easy solution to this problem but he's unable to login to discord. The attached picture is what he wants me to bring to you. (And by the way, may I ask, are you available to check your Tencent QQ recently? He wants to have a real-time discussion with you on Tencent QQ.)

17:05 <queqiao-> ⟨sichelgaita⟩ This paper has details about the gravitational potential inside the Brillouin sphere: https://www.sciencedirect.com/science/article/abs/pii/S0012825221002403. They only give the detailed expressions at order 2, but it's already mightily complicated.