Your best bet is to do a little research and reading about magnets and
maybe a few experiments of your own. Some books on magnets and how they
work can be found at
What is it that you are trying to design?
> Well you seem to be a person who know a lot about magnets... Can you
> tell me which metal out of the whole world will completly stop the line
> of forces of a magnet? I have been told : lead, copper, and nickel, But
> the first two don't work. i need the meatl to be the thivkness of a
> coin or fifty cents piece... Can you help me? Well plez tell me your
> knowlefe of this question!
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