I'm new to the forum and physics in general so forgive the stupidity. I was wonderings if, hypothetically, if one had a 'straight' rod 1000 miles long and balances it horizontal to the earth, would the rod be 'straight [i.e. I shape] or curved [i.e. ( shape]. What I mean is: Is what I consider straight relative to the earths curviture or not? Sorry if this is ridiculously explained..