Mar

12

In this awful market collapsing day today, let me share with you a youtube video about this interesting property of copper just in case you don't know about this already.


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  1. David Lilienfeld on March 25, 2020 3:02 am

    There was actually an effort to patent face masks based on copper. They were great against microbials. If you want the name of the woman in Hong Kong active in the area, please let me know.

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