排序方式: 共有6条查询结果,搜索用时 15 毫秒
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P. Astone M. Bassan P. Bonifazi P. Carelli E. Coccia V. Fafone A. Marini G. Mazzitelli S. M. Merkowitz Y. Minenkov I. Modena G. Modestino A. Moleti G. V. Pallottino M. A. Papa G. Pizzella F. Ronga M. Spinetti R. Terenzi M. Visco L. Votano 《Nuclear Physics B - Proceedings Supplements》1999,70(1-3)
Recently significant advancements have been made towards the realization of a large spherical gravitational wave detector. Research and development activities have already begun in several countries. We present here the main features and capabilities of a spherical gravitational wave detector. In particular, we discuss the interaction between a spherical antenna and cosmic rays that may require a large detector to be placed underground. 相似文献
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Measurement of Newton's constant using a torsion balance with angular acceleration feedback 总被引:2,自引:0,他引:2
We measured Newton's gravitational constant G using a new torsion balance method. Our technique greatly reduces several sources of uncertainty compared to previous measurements: (1) It is insensitive to anelastic torsion fiber properties; (2) a flat plate pendulum minimizes the sensitivity due to the pendulum density distribution; (3) continuous attractor rotation reduces background noise. We obtain G = (6.674215+/-0.000092) x 10(-11) m3 kg(-1) s(-2); the Earth's mass is, therefore, M = (5.972245+/-0.000082) x 10(24) kg and the Sun's mass is M = (1.988435+/-0.000027) x 10(30) kg. 相似文献
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