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Calculate the number 217

NUMBERMANIA: Calculate the number 217 using numbers [8, 6, 6, 5, 77, 848] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 4

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A woman goes to the gynecologi...

A woman goes to the gynecologist for an exam. She puts her feet into the stirrups and the doctor begins his exam.
After a moment, he says, "You have an unusually deep vagina."
The woman replies, "You don't have to say it twice."
The doctor says, "I didn't."

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Shiing-shen Chern

Died 3 Dec 2004 at age 93 (born 26 Oct 1911). Chinese-American mathematician and educator whose researches in differential geometry include the development of the Chern characteristic classes in fibre spaces, which play a major role in mathematics and in mathematical physics. “When Chern was working on differential geometry in the 1940s, this area of mathematics was at a low point. Global differential geometry was only beginning, even Morse theory was understood and used by a very small number of people. Today, differential geometry is a major subject in mathematics and a large share of the credit for this transformation goes to Professor Chern.”- C N Yang, quoted from the book, Chern, a great geometer of the twentieth century. (1992)

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