Popular scientist and all-around super-cool Internet nerd VSauce asks the questions: What color is a mirror? Think about it. It’s not so simple. A “perfect mirror†would be white – sort of.

Variety ranked the top 12 stars in the digital world as part of its #Famechangers issue. For more of the rankings, click here. Michael Stevens is the energetic voice of Vsauce, a science education ...