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NASA Sci Files video containing the following nine segments. NASA Sci Files segment in which the tree house detectives have problems with their GPS device and decide to find out why it failed. NASA Sci Files segment explaining how pilots use GPS and the other uses for GPS. NASA Sci Files segment explaining how the vikings navigated the Atlantic Ocean without the use of modern technology. NASA Sci Files segment explaining how GPS receivers work with satellites to determine an exact location. This segment explains the concept of trilateration in two and three dimensions. |