Phys. Rev. Lett. 64, 2115–2116 (1990)Null result for the weight change of a spinning gyroscopeReceived 20 February 1990; published in the issue dated 30 April 1990 A null result was obtained for the weight change of a right-spinning gyroscope, contradicting the results recently reported by Hayasaka and Takeuchi. No weight change could be observed under a variety of spin directions for rotational frequencies between 0 and 2.2×104 rpm. Our limit of -0.025±0.07 mg is more than 2 orders of magnitude smaller than the effect reported by Hayasaka and Takeuchi. © 1990 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.64.2115
DOI:
10.1103/PhysRevLett.64.2115
PACS:
04.80.+z
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