New Celestial Map Gives Directions For GPS
Thursday, October 29, 2009 - 21:19
in Astronomy & Space
Many of us have been rescued from unfamiliar territory by directions from a Global Positioning System navigator. GPS satellites send signals to a receiver in your GPS navigator, which calculates your position based on the location of the satellites and your distance from them. The distance is determined by how long it took the signals from various satellites to reach your receiver.