Those Anti-Covid Plastic Barriers Probably Don’t Help and May Make Things Worse

Authors: August 19, 2021in News Covid precautions have turned many parts of our world into a giant salad bar, with plastic barriers separating sales clerks from shoppers, dividing customers at nail salons and shielding students from their classmates. Intuition tells us a plastic shield would be protective against germs. But scientists who study aerosols, air flow […]