Frontiers of Physics in China

, Volume 1, Issue 4, pp 449–457

Determination of the gravitational constant G

Authors

  • Hu Zhong-kun 
    • Department of PhysicsHuazhong University of Science and Technology
  • Liu Qi 
    • Department of PhysicsHuazhong University of Science and Technology
    • Department of PhysicsHuazhong University of Science and Technology
Review Article

DOI: 10.1007/s11467-006-0039-3

Cite this article as:
Hu, Z., Liu, Q. & Luo, J. Front. Phys. China (2006) 1: 449. doi:10.1007/s11467-006-0039-3
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Abstract

A precise knowledge of the Newtonian gravitational constant G has an important role in physics and is of considerable meteorological interest. Although G was the first physical constant to be introduced and measured in the history of science, it is still the least precisely determined of all the fundamental constants of nature. The 2002 CODATA recommended value for G, G = (6.6742 ± 0.0010) × 10−11m3 · kg−1 · s−2, has an uncertainty of 150 parts per million (ppm), much larger than that of all other fundamental constants. Reviewed here is the status of our knowledge of the absolute value of G, methods for determining G, and recent high precision experiments for determining G.

Keywords

gravitational constantfundamental constant

PACS numbers

04.80.Cc06.20.Jr

Copyright information

© Higher Education Press and Springer-Verlag 2006