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Coulomb's law remains tricky to test at home

29 points · 23 comments · surprisetalk

  1. NooneAtAll3 · · focus · HN ↗
    > Supposedly, one way to make two equal charges is to charge one thing and then put it in contact with the other thing, so that the charge splits by symmetry. But then how would we check that indeed we have two equally charged things?

    same as with making guaranteed flat surface - you make 3 and measure each pair

    1. nkrisc · · focus · HN ↗
      How do you make 3 equal charges by splitting a charge in such a manner?
    2. ted_dunning · · focus · HN ↗
      Charge splitting being equal depends on capacitance which can be hard to make equal.
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