We've been down this road before. I think the misleading part is that it doesn't displace air to any significant extent. By this logic, a roll of chain link fe

We've been down this road before. I think the misleading part is that it doesn't displace air to any significant extent. By this logic, a roll of chain link fence is three times lighter than water[1]. But it still sinks. EOM [1] Calculations follow… 50 feet of 6 foot tall 9 gauge chain link fence rolls into an 18" diameter cylinder 6 feet tall and weighs 216 pounds. http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDisplay?productId=202024344&storeId=10051&langId=-1&catalogId=10053&ci_sku=202024344&ci_kw=%7bkeyword%7d&kwd=%7bkeyword%7d&cm_mmc=shopping%2d%5f%2dgoogleads%2d%5f%2dpla%2d%5f%2d202024344&ci_gpa=pla#.UJPECrQ8D8s http://www.homedepot.com/webapp/wcs/stores/servlet/ProductDi... Mr. A. Wolfram says that is a volume a 80 gallons. http://www.wolframalpha.com/input/?i=volume+of+a+cylinder+18+inches+in+diameter+and+6+feet+long+in+gallons http://www.wolframalpha.com/input/?i=volume+of+a+cylinder+18... Water is about 8 pounds to the gallon, so the water of equivalent volume would be 640 pounds. Steel fencing is one third the density of water! Write the press release! Sorry about the units, world, at least I didn't break into microfortnights.