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China Focus: Chinese scientists find evidence for speed of gravity (2)

(Xinhua)

17:08, December 28, 2012

The scientists admitted that the observation stations are located near oceans, indicating that the influence of ocean tides might have been strong enough to interfere with the results.

Consequently, the team conducted separate observations of Earth tides from two stations in Tibet and Xinjiang, two inland regions that are far away from all four oceans, as well as took measures to filter out other potential disturbances.

By applying the new data to the propagation equation of gravity, the team found that the speed of gravity is about 0.93 to 1.05 times the speed of light with a relative error of about 5 percent, providing the first set of strong evidence showing that gravity travels at the speed of light.

Their findings have been published online in English by German science and technology publishing group Springer.

Printed articles in both Chinese and English will be carried in a January 2013 edition of the Chinese Science Bulletin, according to the CAS Institute of Geology and Geophysics.



【1】 【2】


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