When you cough, how far can it go?

Airborne transmission of viruses is not well understood, but a good baseline for study is a deeper understanding of how particles travel through the air when people cough.

Talib Dbouk and Dimitris Drikakis from the University of Nicosia, Cyprus, did just such an experiment and found that even in a slight breeze of 4km/hr, saliva droplets travel around six metres in five seconds. At 15km/hr, it takes as little as 1.6 seconds…