We have a device called Compass which tells us about the directions N S E W. First Compass was invented 2000 years ago in Han Dynasty in China, where it was used for telling the future, and not for navigational purpose. Song dynasty in China used it for navigational purpose. After going through many changes, finally Sir William Thompson got the patent for Modern Compass in 1876. It was a basic compass, which was an answer to all the navigational problems. Listen in to know more about how compass got its popular form. www.chimesradio.com
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