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Need help manipulating Van der Walls Force

  1. Oct 5, 2009 #1
    Hi,
    Its my first time so forgive me if I miss something.

    I know a bit about physics. Protons +1, electrons -1, and neutrons have a charge of 0. Opposite charges attract and similiar charges repel.
    Van der waals force deals with electrostatic interactions between molecules.
    We all know that a baloon rubbed on hair will "stick" because of a static charge. I am looking to do the same thing to objects but have them repel instead. The only catch is i need to do it in a more practical manner using electricity and it needs to be practicaly small in size (smaller than 2in^3 would be ideal) no van der graff generators:rolleyes:

    http://www.youtube.com/watch?v=5PYVTQ9GaxE&feature=channel_page
    This video show a kid who created one and is using it to stick cards and other objects to the wall.

    Does anyone know more about how to create one or where I can find out how to create one?

    I am also interested in how a geckos foot uses van der waals forces to stick to almost any surface. It does this using lots of seta or little bristels each a few nanometers thick. Does anyone know where to buy a material like this?
    thanks in advance:smile:
     
  2. jcsd
  3. Oct 13, 2009 #2
    Can anybody point me in the right direction?
     
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