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Calculate the number 775

NUMBERMANIA: Calculate the number 775 using numbers [5, 7, 2, 5, 89, 448] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 28

The first user who solved this task is Sanja Šabović.

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Why Jesus Was Jewish

Of course Jesus was Jewish. He was 30-years-old, lived with his parents, worked in the family business, and his mom thought he was God's gift to earth.

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Raoul Pierre Pictet

Died 27 Jul 1929 at age 83 (born 4 Apr 1846).Swiss chemist who was a pioneer of cryogenics. His original interest in the artificial production of ice (for refrigeration) led him to study the production of extremely low temperatures. He produced liquid oxygen, working independently of the French scientist, Louis Paul Cailletet, who is also credited with its discovery in 1877. However, Pictet used more elaborate equipment and was able to produce greater volumes of liquified gases. Pictet used a cascade method, in which he evaporated liquid sulfur dioxide to liquefy carbon dioxide, which in turn was allowed to evaporate and to cool oxygen to below its critical temperature. The oxygen could then be liquefied by pressure. This was also easier to apply to other gases.

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