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On the possibility of measuring the Earth's gravitomagnetic force in a new laboratory experiment

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Lorenzo Iorio

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LETTER TO THE EDITOR

In this letter we propose, in a preliminary way, a new Earth-based laboratory experiment aimed at the detection of the gravitomagnetic field of the Earth. It consists of the measurement of the difference between the circular frequencies of two rotators moving along identical circular paths, but in opposite directions, on a horizontal friction-free plane in a vacuum chamber placed at the South Pole. The accuracy to our knowledge of the Earth's rotation from VLBI and the possibility of measuring the rotators' periods over many revolutions should allow for the feasibility of the proposed experiment.


PACS

91.10.Nj Rotational variations; polar wobble

04.80.Cc Experimental tests of gravitational theories

MSC

86A25 Geo-electricity and geomagnetism (See also 76W05, 78A25)

Subjects

Environmental and Earth science

Gravitation and cosmology

Dates

Issue 1 (7 January 2003)

Received 2 September 2002

Published 9 December 2002



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