Ancient navigation depends on navigation
According to the "Zheng He Zheng He" charts, using hydrographic needle (24/48 azimuth compass navigation) with Ocean Star drawing operation (celestial navigation), at that time is the most advanced navigation technology. Zheng He's fleet, the day with the compass navigation, night watch stars and method is used to keep water compass heading.
According to the "Zheng He Zheng He" charts, using hydrographic needle (24/48 azimuth compass navigation) with Ocean Star drawing operation (celestial navigation), at that time is the most advanced navigation technology. Zheng He's fleet, the day with the compass navigation, night watch stars and method is used to keep water compass heading.
According to the "Zheng He Zheng He" charts, using hydrographic needle (24/48 azimuth compass navigation) with Ocean Star drawing operation (celestial navigation), at that time is the most advanced navigation technology. Zheng He's fleet, the day with the compass navigation, night watch stars and method is used to keep water compass heading.
