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Gravity passes a little test

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Newton's gravity, that old classical warhorse, is well established on scales as large as the Solar System. The latest experimental confirmation of its validity is tiny in scale, but big in implications.

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Figure 1: Gravitational balance.

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  1. Clive Speake is at the School of Physics and Astronomy, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK. c.c.speake@bham.ac.uk,

    Clive Speake

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  1. Clive Speake
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Speake, C. Gravity passes a little test. Nature 446, 31–32 (2007). https://doi.org/10.1038/446031a

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