9/2     What is the average density of scrap metal?  I don't have anything to
        measure weight near me and I need that info soon.  Ok tnx.
        \_ STFW?  there's got to be something about this online somewhere.
        \_ Use the scale at the post office.  It also depends on the paper.
           E.g. phone books are pretty light considering their sizes.
           \_ I cannot access a post office right now.  I need to estimate
              very roughly the weight of many boxes of books with only rulers
              and helpful info from the motd.  If you have a big book and can
              measure both its weight and dimensions, please let me know. Tnx.
              \_ I know.  Find a computer book at your office.  Measure its
                 dimensions.  Go to http://Amazon.com, and try to order 100 copies of
                 that book.  See what the shipping charge is, and backward-
                 calculate its weight according to the shipping method.  Then
                 cancel your order at the last step.
                 \_ That's a pretty good idea.  Though you don't even need to do
                    this--Amazon should include the dimensions of the book.
        \_ assume Iron (Fe) and Aluminum (Al)
        \_ Fe (7.86 g/cc), Al 2.7 (g/cc)