Detection of earth rotation with a diamagnetically levitating gyroscope

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Detection of earth rotation with a diamagnetically levitating gyroscope

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Title: Detection of earth rotation with a diamagnetically levitating gyroscope
Author: Konstantin Geim, Andre
Abstract: Strong magnetic fields allow levitation of apparently nonmagnetic substances due to their weak but not negligible diamagnetic response of about 10 . Importantly, the diamagnetic force compensates gravity on the level of individual atoms and molecules and, therefore, can be used to mimic a continuous zero-gravity environment that, otherwise, is only achievable on board of a space station. Here we employ this earth-bound low gravity to demonstrate a simple mechanical gyroscope with sensitivity already comparable to that achieved by quantum and military gyroscopes. Our gyroscope can serve as a `shooting range' for the development of precision orbiting gyroscopes that have been a subject of intensive discussions regarding possible tests of general relativity.
Handle: http://hdl.handle.net/10498/21046
Date: 2001-03-09

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