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Calculate the number 8638

NUMBERMANIA: Calculate the number 8638 using numbers [7, 3, 7, 5, 99, 815] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 3

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Jon Reep: Southern Accents

People think youre an idiot. I dont know where they get that idea. But when they hear my accent for the first time, I can tell theyre looking at me and theyre just waiting for me to say something like, What are shoes for?

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Samuel Abraham Goudsmit

Born 11 Jul 1902; died 4 Dec 1978 at age 76.Dutch-born U.S. physicist who, with George E. Uhlenbeck, a fellow graduate student at the University of Leiden, Neth., formulated (1925) the concept of electron spin. It led to recognition that spin was a property of protons, neutrons, and most elementary particles and to a fundamental change in the mathematical structure of quantum mechanics. Goudsmit also made the first measurement of nuclear spin and its Zeeman effect with Ernst Back (1926-27), developed a theory of hyperfine structure of spectral lines, made the first spectroscopic determination of nuclear magnetic moments (1931-33), contributed to the theory of complex atoms and the theory of multiple scattering of electrons, and invented the magnetic time-of-flight mass spectrometer (1948).

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