Tag: distance
Quiz: do you know the units of measurement?
In what unity is the work of a force expressed? What is the official unit of measurement for temperature? How much is a nautical mile? An urgent quiz before reading…
At 3 m distance, an unvaccinated person without a mask is 90% sure of catching Covid-19 in 5 minutes!
This is not really good news! Fortunately, wearing your surgical mask or FFP2, even poorly adjusted, can drastically reduce the risk of catching Covid-19. Two people discuss without masks, but…
At 3 m distance, an unvaccinated person without a mask is 90% sure of catching Covid-19 in 5 minutes!
This is not really good news! Fortunately, wearing your surgical mask or FFP2, even poorly adjusted, can drastically reduce the risk of catching Covid-19. You will also be interested [EN…