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Feb 7, 2018 ... First Land Surveyors: Ancient Egypt, 1,400 B.C. · Land Surveying in Mesopotamia, 400 B.C. · Chinese Invent the First Magnetic Compass, 221-206 ... May 19, 2017 ... This is the first recorded method of using depth and seabed material to determine ... compass uses the magnetic poles of the earth to find ... Oct 1, 2023 ... The earliest reason for the** Chinese **to invent the magnetic compass and determine directions was for navigation and trade purposes. By ... Feb 27, 2021 ... Probably it was first used as a device for ... This table should be used to correct the compass course and to determine the true heading. Feb 2, 2022 ... A compass takes advantage of the Earth's magnetic field to help you determine directions while you navigate. ... When the Chinese invented the ... The Compass - The Chinese invented the magnetic compass to help determine the correct direction. They used this in city planning at first, but it became ... People in China and Europe first learned how to make magnetic compasses during the 1100s. They discovered that when a magnetized bit of iron floated in water, ... The Chinese navigated using a splinter of lodestone floated on water as early as 800 A.D. Explorers like Marco Polo brought the magnetic compass back to Italy, ... Jan 26, 2012 ... The compass was first invented in the Han dynasty, but further improvements were made in the Song dynasty. The invention of the magnetic compass by the Chinese revolutionized navigation. Mariners could now determine their direction more accurately, greatly enhancing ...