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for this you need an iron pin, a magnet and a plastic cap that can float on water. Magnetize the iron pin by rubbing a magnet on it continuously in one direction for about 15 minutes. Now place the needle in the centre of the plastic cap and hold it in position with cello tape. take a container containing water and put the cap in it such that it floats on it. The pin will always point in north south direction. but the compass can be confused by a magnet placed near it.

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13y ago
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Q: What is a way to make a homemade compass?
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