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.
Latitude is your position north or south of the Equator. Lines, or parallels, are drawn around the Earth at intervals. The North Pole is assigned the latitude 90Âº north and the South Pole latitude 90Âº south. Lines of longitude, or meridians, are drawn a little differently. The line of longitude corresponding to 0Âº, which passes through Greenwich in London, is called the Prime (or Greenwich) Meridian.