Posted 02/26/2017 3:01 pm
Nickel plating will make a 1-cent coin attracted to a magnet...
"Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert Oppenheimer
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My eBay store
Content of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_US
My eBay store
