Latitude and longitude coordinates can be deduced by knowing the position of a stationary observer or place on Earth in relation to the equator and the prime meridian. As Earth is spherical in shape, ...

The equator is a clear and accurate line around Earth that makes measuring latitude a precise science, but when it came to ...

Want to understand why it is that having a precise timepiece (also known as a chronometer) helps you determine your longitude? Play this Shockwave game, get lost on the high seas, and find out.

The Royal Observatory in Greenwich, England – near London – once served as the center of navigation worldwide. It is still considered the "dividing line" between eastern and western time zones and the ...