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: Geim, A.K.; ter Tisha, H.A.M.S.
xmlui.dri2xhtml.METS-1.0.item-source: Physica B 294-295 (2001) 736-739
Abstract: Strong magnetic "elds allow levitation of apparently nonmagnetic substances due to their weakbut not negligible diamagnetic response of about 10^-5. 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 rangea for the development of precision orbiting gyroscopes that have been a subject of intensive discussions regarding possible tests of general relativity.
Subject: Levitation ; Gyroscope ; Diamagnetism.
Handle: http://hdl.handle.net/10498/21193
Date: 2001

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