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Mazhar Pinjari		 How the scientist measures the rotation of earth, means RPM of earth, Which instruments use, and how it Works? View All


14 years ago - 4 months left to answer. - 1 response - Report Abuse
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Niel
 A Foucault pendulum is the device that is used to demonstrate that the earth rotates about it axis [1]. It works in accordance to Newton's laws of motion.

Since the Earth rotates once every 24 hours, it rotates at .000694 RPM.

Niel

14 years ago

Source: [1] http://en.wikipedia.org/wiki/Foucault_pendulum


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