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Question on friction

  1. Apr 27, 2006 #1
    how does licking your fingers increase friction when you wanna turn a page?

    and why is it different than when you wanna climb a cliff and you dry your hands instead?
  2. jcsd
  3. Apr 27, 2006 #2


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    Licking your fingers doesn't increase friction with the page. The only reason I could imagine why people do that is because of polar action. The spit sticks to the paper, and it sticks to your finger, and it sticks to itself, so it acts like glue.

    You really want dry hands if you want to increase friction, gymnasts dust their hands (feet sometimes) in chalk before doing their thing. Bowlers too, but I think they use something else. With silicon dioxide in it?
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