We learned in elementary school that we should eat liver and spinach, because the hemoglobin in our blood needs the iron (thank goodness for fortified foods). 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. He is kind enough to give warning to the squeamish when the blood appears.
On the way to the answer, we see some really neat stuff, like the chemical structure of hemoglobin, and a super magnet picking up burned matches. Who knew that could happen? -via Boing Boing