I've discovered that John Nash ("that beautiful mind guy") is probably about as well known as Newton. So is "that Numbers guy" (http://en.wikipedia.org/wiki/Numb3rs).
No. People don't call Newton: "That gravity guy", people know Newton's name. Every time I go to talk to a non-Mathematician about John Nash and say his name they go: "Who?", me: "The Mathematician from A Beautiful Mind." them: "Oh." Newton is Newton and in terms of popularity, John Nash; "The Beautiful Mind guy" isn't even in his league.
