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Calculate the number 537

NUMBERMANIA: Calculate the number 537 using numbers [4, 7, 1, 6, 60, 472] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 15

The first user who solved this task is Nasrin 24 T.

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Jo Koy: My Inspiration

A lot of people are wearing t-shirts with pictures of people that inspire them to do stuff. I wear a picture of my son cause no one inspires me to work harder than my son. Its also a constant reminder to wear a condom.

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Annie Jump Cannon

Born 11 Dec 1863; died 13 Apr 1941 at age 77. American, deaf astronomer who specialized in the classification of stellar spectra. In 1896 she was hired at the Harvard College Observatory, remaining there for her entire career. The Harvard spectral classification system had been first developed by Edward C. Pickering, Director of the Observatory, around the turn of the century using objective prism spectra taken on improved photographic plates. In conjunction with Pickering Cannon was to further develop, refine, and implement the Harvard system. She reorganized the classification of stars in terms of surface temperature in spectral classes O, B, A, F, G, K, M, and catalogued over 225,000 stars for the monumental Henry Draper Catalogue of stellar spectra, (1918-24).

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