latitude and longitude - part 21 of 23. no matter where on the earth you are, you can tell someone exactly how to find you - whether you are on land, in the ocean, or even in the air. in this fascinating film, viewers learn how the earth's grid system is - compass coordinates stock videos & royalty-free footage00:33Latitude and Longitude - part 21 of 23. No matter where on the earth you are, you can tell someone exactly how to find you - whether you are on land, in the ocean, or even in the air. In this fascinating film, viewers learn how the earth's grid system isGlobe - Navigational Equipment, Longitude, Searching