Measurements of the gravitational constant using two independent methods

  title={Measurements of the gravitational constant using two independent methods},
  author={Qing Li and Chao Xue and Jian-Ping Liu and Jun-fei Wu and Shanqing Yang and Cheng-Gang Shao and Li-Di Quan and Wen-Hai Tan and Liang-Cheng Tu and Qi Liu and Hao Xu and Linxia Liu and Qing-Lan Wang and Zhongkun Hu and Zebing Zhou and Pengshun Luo and Shuchao Wu and Vadim Milyukov and Jun Luo},
The Newtonian gravitational constant, G, is one of the most fundamental constants of nature, but we still do not have an accurate value for it. Despite two centuries of experimental effort, the value of G remains the least precisely known of the fundamental constants. A discrepancy of up to 0.05 per cent in recent determinations of G suggests that there may be undiscovered systematic errors in the various existing methods. One way to resolve this issue is to measure G using a number of methods… 

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