Gps People Eslpod Navigation Track Mark Airplanes Cn

GPS is a "dual-use technology," which means that it can be used for "military" (the people and organizations that protect a country and pursue its interests with force) and "civilian" (not related to the military) uses. As discussed in this podcast, GPS is most often used for navigation. Most smart phones are "GPS-enabled" (able to use GPS) and can "produce" (create and display) maps and give directions based on the phone's current position. And many new cars have GPS-based navigational devices on the "dashboard" (the display in front of a driver). The military also uses GPS for navigation.

People are "increasingly" (more and more over time) using GPS for "geofencing," which is the use of GPS to "track" (observe and follow the movements of) people, pets, and vehicles. And "geotagging" is the practice of using GPS to mark exactly where a photograph was taken.

Scientists use GPS in many experiments because GPS can provide highly accurate "readings" (measurements) of "space" (where something is), movement, and time. For example, "astronomers" (people who study outer space and the movement of objects in space) use GPS data in their calculations, and engineers use GPS to help their "robots" (machines that perform human-like tasks) navigate and move. "Air traffic controllers" (people who tell airplanes when and how they can move) use GPS to "track" airplanes in the sky. And "surveyors" (people who mark boundaries between properties) and "mining companies" (companies that take valuable minerals out of the ground) "rely on" (need and use) GPS to know "precisely" (exactly) where they are.