How to See Germs Spread
black light | covid-19 | hygiene | mark rober | science | March 18, 2020
We’ve all heard the advice to wash our hands, avoid touching our faces, and clean our smartphones if we want to avoid catching and spreading coronavirus or other bugs. Mark Rober uses some UV-reactive powder to demonstrate why that’s so important, and shows just how much stuff we touch and leave our germs on.
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