Using railways to view curvature

This might have been done before. I'm thinking railways, with their long straight stretches, might actually yield visible curvature. There should absolutely be, at least in the U.S. or Australia, long enought straight stretches to test this. I tried it at my local train station, but , sadly there's a hill right at the town exit ( it's a line's end, so there's only one outbound line

Mick West

Staff member
You couldn't. This was suggested before, I think somewhere on Metabunk (I could not find it though, buried in a thread). The bottom line is that there's way more variation in a "flat" section of railroad than you realize. Unless it's going over a dry lake bed or a causeway over water, then there's always a variety of slopes along the way. Revealed if you do an elevation profile in Google Earth.