Starship Asterisk*

I like this guy, Nicholaus Cusanus, and I like the quote. I think, however, that I am glad I did not live in the 15th Century with him. I'll take the age we live in, thank you.

Suppose there are two observers, say one in New York City and one in San Francisco. Will the center of gravity of the universe be the same or different for the two observers?

Gravity itself does not have a specific location; it is present everywhere. Therefore, there is no such thing as an absolute "Center of Gravity" for the universe, just as there is no such thing as the center of the surface of a sphere. Since all matter in the universe exerts an equal and o...