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Gravity Normal At Small Scales.

  1. Aug 22, 2005 #1


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    A study of gravity at the 6-20 micrometer scale has found it to behave normally and experimentally constrained the scale of any small scale deviation from the Newtonian expectation.


    Hat tip to Motl for noting the paper.
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  3. Aug 23, 2005 #2


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    Isn't it amazing how difficult it is to test gravity at not-so-extreme limits? I've always thought so. 6-20 micrometers is enormous compared to most scales at which we test fundamental interactions. Kinda reminds me of the Planck mass.
  4. Aug 23, 2005 #3


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    If you want to learn more about these sorts of experiments *and they are really cool IMO* check out this page


    and for instance a review article on various ways of doing this experiment


    Basically all these experiments are like the famous Cavendish experiment in one shape or another. The more modern versions now use casimir forces to measure the deviation.
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