Sunworshiper wrote:


I wonder if things like the bases of pyramids and tops of aqueducts
are curved like the earth or straight. Off hand I would think they
would have to have optics to get it straight. Bet they are curved.
Even line segments would be interesting. Things that make me go
hmmm... Structures should be straight and aqueducts curved. Then again
suspension bridge towers wouldn't be parallel.

This was just being discussed over in one of the
misc.transport.rail.americas
The Verazano Narrows bridge between Statin Island and Brooklyn has
towers the are about 2 inches further apart at the top then the bottom
because of the earth curvature.