It’s common scientific knowledge that face masks are effective in slowing the spread of the coronavirus. But not everyone is listening to the advice of scientists. Bill Nye, a science guy in real life and on TV, decided to do an experiment to show how effective masks are. Bill dusted off his TikTok account to show the people who just don’t get it. The experiment is simple: Bill dons a mask and then tries to blow out a candle. He can’t do it.