You mean you didn't know? [Cliff Clavin from Cheers] You see, the weight of Jefferson's profile on the head of the nickel has been, er, scientifically shown to be less than the weight of, er, Montessouri on the back. So, Nahm, when you flip a nickel, you're, er, more likely to get yer Jefferson to fall heads up. [/Clavin]
I hope you're old enough to get that reference, btw.