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Q.

What is History of Compass ?

Tags: real estate, science, astrology
Asked by khabardar, 20 Apr '12 07:35 pm
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Answers (2)

1.

ThecompasswasinventedbytheChinesewhomayhavebeenthefirsttouseitfor navigationalpurposessometimebetween1000and1100A.D.

Theearliest referencetoitsuseinnavigationwasbytheEnglishman,AlexanderNeckam(1 157-1217).
Mariners Compass
Muslim Scientists(8
th
Century):

Muslim geographers and navigatorswere the first to use magnetic needlesin navigation.
...more
Answered by hazir jawab, 20 Apr '12 07:45 pm

 
  
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2.

The magnetic compass is an old Chinese invention, probably first made in China during the Qin dynasty (221-206 B.C.). Chinese fortune tellers used lodestones (a mineral composed of an iron oxide which aligns itself in a north-south direction) to construct their fortune telling boards.

Eventually someone noticed that the lodestones were better at pointing out real directions, leading to the first compasses. They designed the compass on a square slab which had markings for the cardinal points and the constellations. The pointing needle was a lodestone spoon-shaped device, with a handle that would always point south.
Answered by saranathan Narasimhan, 20 Apr '12 07:38 pm

 
  
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