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novo
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Sorry if this is a fundamental property or not, but I'm curious as hell. Today in class my proffesor had two identical iron rods. Same in weight and length. However, one is magnetic, and the other is not. He said, "You have the two rods and use of your brain. How do you find out which is the magnetic one?"
That means without suspending them to see which turns towards N/S. Or any other means, like a compass. etc.
Thanks in advance.
-n
That means without suspending them to see which turns towards N/S. Or any other means, like a compass. etc.
Thanks in advance.
-n
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