We learn in elementary school that we should eat liver and spinach, because the hemoglobin in our blood needs the iron. And we older folks know about "iron-poor tired blood." So how much iron is there inside us? Would it react to a magnet? How about a huge super magnet? Braniac75 does the experiment to found out. On the way to the answer, we see some really neat stuff, like a super magnet picking up burned matches. Who knew? (via Boing Boing)
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