The Guys would like to wish a very happy birthday to one very smart lady.
Born today in 1882 in the Bavarian town of Erlagen, she would go on to to make groundbreaking contributions to abstract algebra and theoretical physics. Albert Einstein would later describe her as the most important woman in the history of mathematics.
She may have died in 1935, but we think this little German adding machine can still solve for sex. We put it to you, Internet: