CNN Anderson Cooper 360 December 24, 2021 01:53:00
With a mixture of glycerine and water, then use a pump to force it to cough. then they wait and see how far the droplets travel. the droplets fill the air, made visible with a green laser light. holiday travelers take note. the droplets expelled advanced a distance of three feet almost immediately. within five seconds, the droplets had traveled six feet, then nine feet in just about ten seconds. remember, nine feet is three feet beyond the recommended social distancing guidelines. >> its already...
Source: archive.org