So there you are, walking down the street when it occurs to you that you've left your mask at home. And to make matters worse, someone without a mask is heading in your direction
coughing up their lungs. Is this person, possibly shedding COVID-19, more than 6-feet away from you? That is the distance recommended by the CDC to make sure that you're out of range of any possible COVID-19 contamination. , Google has a new experiment called Sodar that uses your phone and AR to measure a two-meter ring to show you how far away someone needs to be so that you won't catch the coronavirus ...
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