Initially, I was going to be a smartass, and comment that everybody knows a ton of rocks weighs much more than a ton of feathers, and that the same principle applies, however, the comment got me to actually questioning which material, copper or steel, is more dense. Because of the nature of the scrap a guy handles every day, one might think that the copper (little bits of plumbing pipe, little bits of stripped wire, etc), is less dense than iron (big pieces of angle iron, or an engine block, fer instance).
http://www.coolmagnetman.com/magconda.htm
Bad choice, Kris Kringle...Did you notice that copper is heavier than iron? A cubic foot of iron is 491 lb. A cubic foot of copper is 559 lb.
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