This week, in an operating theatre at the government's science facility at Porton Down, a small group of guinea-pig choral singers, some professional and some amateur, are taking part in experiments to measure what happens to those aerosols " droplets measuring five-thousandths of a millimetre or less " when they are emitted by the singing […]
SOURCE: ArtsJournal at 04:54PM on July 13, 2020