Reducing the Risk. A lack of answers is part of what makes sudden infant death syndrome (SIDS) so frightening. SIDS is the leading cause of death among infants 1 month to 1 year old, and claims the lives of about 2,500 each year in the United States. It remains unpredictable despite years of research. Even so, the risk of SIDS can be greatly reduced.
Using the Latitude Longitude Coordinate System. The latitude longitude coordinate system uses angular measurements to describe a position on the surface of the earth. The system has been in use, with little change, since the astronomer Ptolemy used them in his first world atlas in A.D. 150. Mariners and aviators have been the primary users of latitude/longitude in the past. The system is used on a world wide basis and many different types of maps have lat/lon markings.
Zero degrees (0Â°) latitude is the equator, the widest circumference of the globe. Latitude is measured from 0Â° to 90Â° north and 0Â° to 90Â° southâ90Â° north is the North Pole and 90Â° south is the South Pole. longitude lines. Imaginary lines, also called meridians, running vertically around the globe.