Need help manipulating Van der Walls Force

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  • Thread starter Thread starter hemi426
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SUMMARY

The discussion focuses on manipulating Van der Waals forces to achieve electrostatic repulsion between objects, specifically in a compact form under 2 cubic inches. The user seeks practical methods to create such a device without using Van de Graaff generators. Additionally, the user expresses interest in the structure of gecko feet, which utilize Van der Waals forces through nanoscale bristles called setae, and inquires about sourcing similar materials.

PREREQUISITES
  • Understanding of electrostatic interactions and charges (protons, electrons, neutrons).
  • Familiarity with Van der Waals forces and their applications in physics.
  • Basic knowledge of materials science, particularly at the nanoscale.
  • Experience with small-scale electrical devices and their construction.
NEXT STEPS
  • Research methods for generating electrostatic repulsion using small-scale electrical components.
  • Investigate materials that mimic gecko setae for applications in adhesion and repulsion.
  • Explore existing technologies that utilize Van der Waals forces for practical applications.
  • Learn about nanoscale fabrication techniques for creating structures similar to gecko feet.
USEFUL FOR

Physics enthusiasts, materials scientists, engineers, and inventors interested in electrostatic applications and biomimicry in design.

hemi426
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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 similar charges repel.
Van der waals force deals with electrostatic interactions between molecules.
We all know that a balloon 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:
 
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Can anybody point me in the right direction?
 

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