Viruses can be challenging to comprehend because they’re invisible to the naked eye, traveling inside water droplets on hidden air currents.
Using a combination of slow movement and schlieren imaging, the video exposes what a cough looks like with and without a mask.
A mask does 2 things: First, it records much of the beads expelled when you cough, sneeze, or breathe; 2nd, any that aren’t caught have their momentum blunted, keeping them from traveling very far.
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Jesse Hicks is a Detroit-based writer and previous functions editor at The Verge who concentrates on longform stories about science, health, and technology.
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