Geomagnetic field demonstration

AI Thread Summary
A demonstration of the Earth's magnetic field using a strong magnet inside a rubber globe is proposed, with the idea of using paperclips to show magnetic direction. However, there are concerns that paperclips may not effectively illustrate the magnetic field's behavior. Suggestions include using compass needles instead, although challenges exist in attaching them to the globe. A practical alternative is to use a real compass at various locations on the globe's surface to observe the magnetic effect. The discussion emphasizes the need for a strong magnet and the importance of experimentation to achieve accurate results.
GTdan
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For physics, I had to write a report and show a demonstration on the magnetic field of the Earth. I already turned in the report and I have an idea about showing the field. I was thinking of sticking a strong magnet inside a rubber globe of the Earth and then putting paperclips on different parts of the globe. The magnetic field would cause the clips to point in a certain direction depending on where I place it. Does this sound like an ok demonstration? Is there a better way of showing the m-field of the Earth?
 
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I think this won't work; you would at least have to use compass needles to see the effect, but I guess it's nearly impossible to pin them onto a globe. But you could use a real compass which you would then place at different places (..."place at different places"? Excuse my small vocabulary :smile:) of the globe surface. BUT: I don't know how close to the magnet you would have to go with the compass, or how strong your magnet would have to be, I advise you to just try it!
 
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well, I need a REAL STRONG magnet. I haven't found any regular magnets that work so I will have to go looking around the physics dept in school to see if I can borrow one... ;)
 
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