References in periodicals archive ?
The closest we come to parallel lines are the lines of latitude.
A grid is figuratively created on the surface of the earth using lines of latitude and longitude.
This was the problem Mercator solved in 1569 by proportionately lengthening lines of latitude and longitude: a straightforward solution to an ancient problem, and as close to squaring the circle as anyone will ever come.
That explains why many borders in North America, Africa and the Middle East are so often dead straight -- simply following lines of latitude or longitude, with little regard to more realistic geographic, ethnic or cultural marks of delineation.
Imagine the Earth's lines of latitude and longitude expanding outward and printing themselves on the inside of the celestial sphere.