Question

GPS is also known as " path finder".why?

Answer 1

Answer:

Because it knows another person. where he was

Answer 2

Answer:

Navigation systems lead us safely to our destination in part because of a technology that was first tested on the moon. The Apollo 11 crew left behind more than just footprints on the moon in 1969; they also left a laser reflector. This reflector still helps determine the exact distance between Earth and the moon. It consists of an array of 100 quartz glass prisms made by Heraeus. NASA selected this special glass because of its durability and extreme purity. To measure distances, a laser beam is focused on the reflector, and then the time it takes for the light to return to Earth is measured.