Bill Nye hosts National Park Foundation 'View-A-Thon' at Mashable on November 29, 2016 in New York City. LOS ANGELES - As the coronavirus pandemic continues to hit alarming milestones, notable TV scientist Bill Nye explained why masks are effective in curbing transmission and the spread of COVID-19.Bill Nye, known as “the Science Guy,” posted a video on TikTok, which broke down why wearing a mask is important.In the video, which has now gone viral and amassed over 15.5 million views, Nye revealed a map of the United States.I don’t know who needs to hear this but... ##masks work.