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  1. 12-29-20, 06:04 AM #4
    marcel
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    A human hair is approximately 80,000- 100,000 nanometers wide.
    A strand of human DNA is 2.5 nanometers in diameter.

    A single gold atom is about a third of a nanometer in diameter.

    I believe the smallest particles of gold you can buy is 2 nanometers in diameter:
    https://www.americanelements.com/gol...cles-7440-57-5
    Last edited by marcel; 12-29-20 at 06:11 AM.
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