Meridians (geography)

Category:Meridians (geography) - Wikipedia

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Named meridians Prime meridian Antimeridian Historical prime meridians Meridians of longitude

Why time zones follow political borders instead of the 15-degree meridians Why the prime meridian runs through Greenwich: the 1884 vote and who abstained Why the International Date Line zigzags instead of following the 180th meridian How sailors found longitude at sea before reliable chronometers: the lunar distance method Why longitude counts to 180 twice instead of running from 0 to 360 How a meridian is marked and resurveyed on the ground with geodetic monuments A degree of longitude shrinks toward the poles while a degree of latitude stays the same Before 1884 every town kept its own solar time and railway timetables were chaos Zero degrees longitude is fixed by satellites today rather than by a brass strip at Greenwich France kept the Paris meridian for twenty-seven more years after Greenwich won Magnetic declination: the gap between the meridian a compass points to and the true one Meridians are halves of great circles: why due north is the shortest line to the pole

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