Modern aircraft pilots determine direction by using different navigation
technologies. one technology is radio signals. sent from the ground, these
signals act as beacons. another technology is the gyrocompass. inside a
gyrocompass is a spinning wheel that tends to remain pointing in the same
direction. finally, pilots use global positioning systems (gps) that employ
signals sent by satellites. based on your experience with magnets and
magnetic compasses, how might a magnetic compass compare to these
alternative methods?