GPS in our society
... The only way you can record where you have been, or find your way back to civilization, is by using the almost magic power of your GPS receiver. ... Using a GPS receiver, you are able to help ships avoid disaster by zeroing in on the position of the icebergs and notifying ship captains of their locations, perhaps averting disaster. There will probably be a time soon when every car on the road can be equipped with a GPS receiver, including a video screen installed in the dashboard.