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> steel pennies will be drawn to magnets whereas the zinc and copper pennies will float. Float on water?
by cjfont 12y ago
> steel pennies will be drawn to magnets whereas the zinc and copper pennies will float.
Float on water?
- adrianN 12y agoIt works with aluminium, if you're careful https://www.youtube.com/watch?v=kJlRnCed0bY https://www.youtube.com/watch?v=kJlRnCed0bY
- city41 12y agoIt said "and water tables composed of different chemicals" -- they will create a density that causes zinc and copper to float but not steel.
- zAy0LfpBZLC8mAC 12y agoWhich is somewhat nonsensical, of course - they can already separate out the steel pennies magnetically, and it would be pretty pointless to have all of the remaining pennies after that separation step float. If anything, they'll have the less dense non-steel float and the denser non-steel sink.