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
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
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
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