The speed and distance which droplets carrying the Covid-19 virus travel and the impact face coverings have on its spread have been demonstrated by a team of mechanical engineers and doctors working out of the Mater hospital in Dublin. Dr Nolan used two different methods to prove the effectiveness of masks. “We can see that large droplets fall quickly to the ground while smaller particles which can contain the virus linger in the atmosphere,” Dr Nolan said. “Conspiracy theorists will have you believe masks can’t work because they virus is so small and can travel through material but that is to misunderstand the science. Prof Cahill also said it would help medical engineers develop comparatively simple devices which would lessen the spread of potentially harmfully aerosols during keyhole surgery.

Source: The Irish Times September 28, 2020 18:22 UTC