How did ships navigate?
Early ships needed to sail near shore as the sailors couldn't discover their manner in open sea. By approximately one hundred BC, generation improved and the sailors may want to navigate with gadgets just like the astrolabe. The early Chinese used a spoon similar to a compass. Sailors from different international locations extensively utilized a lodestone, which is a herbal compass. By the 12th century, the magnetic compass became in use. As the technology of cartography (mapping) improved withinside the Middle Ages, getting misplaced changed into much less of a threat for sailors. In 1757, the sextant, a device to degree latitude, turned into invented.