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A Progress in measurement of gravitational constant?

  1. May 31, 2016 #1
    I read that in 2014 the gravitational constant was measured by atomic intereferometry. Now I read that they speculate that measurements of G are in correlation with 5,9 years cycle.

    But, when we can expect new measurements of G? Are they in preparation?
     
  2. jcsd
  3. Jun 1, 2016 #2

    Jonathan Scott

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    The paper which suggested the 5.9 year cycle has been mostly discredited due to the fact that the choice of measurements was quite selective and the dates assigned to some of the measurements were the date of publication rather than the date of the measurement. After those points were corrected the cycle is much less plausible. This is mentioned in the Wikipedia article on the gravitational constant, https://en.wikipedia.org/wiki/Gravitational_constant

    Here's a recent American Physical Society (APS) article about trying to find better ways to measure "big G":
    https://www.aps.org/publications/apsnews/201605/big-g.cfm
     
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