David Brown and guide Jerome Avery are poetry in motion 🤯
They’re the defending Paralympic champions in the 100-meter dash (via @paralympics) https://t.co/jDLn0BimKQ
What does a mask do? Blocks respiratory droplets coming from your mouth and throat.
Two simple demos:
First, I sneezed, sang, talked & coughed toward an agar culture plate with or without a mask. Bacteria colonies show where droplets landed. A mask blocks virtually all of them.