Captain Elara Thorne watched the brass needle of her meridian clock shiver. In the year 2314, longitude was no longer measured by the Greenwich Observatory, but by the Prime Singularity
In the age of GPS and digital mapping, meridian coordinates are more relevant than ever. Every "pin" dropped on a smartphone map relies on a decimalized longitudinal coordinate. Beyond navigation, meridians are used in meteorology to track storm paths, in aviation to plot Great Circle routes (the shortest distance between two points on a sphere), and in telecommunications to synchronize satellite arrays. Conclusion meridian coordinates