Calculate the number 8815
[6398] Calculate the number 8815 - NUMBERMANIA: Calculate the number 8815 using numbers [6, 6, 1, 7, 31, 739] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 10 - The first user who solved this task is Nílton Corrêa de Sousa
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Calculate the number 8815

NUMBERMANIA: Calculate the number 8815 using numbers [6, 6, 1, 7, 31, 739] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 10
The first user who solved this task is Nílton Corrêa de Sousa.
#brainteasers #math #numbermania
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The shipwrecked mariner

The shipwrecked mariner had spent several years on a deserted island. Then one morning he was thrilled to see a ship offshore and a smaller vessel pulling out toward him.
When the boat grounded on the beach, the officer in charge handed the marooned sailor a bundle of newspapers and told him, "The captain said to read through these and let us know if you still want to be rescued."
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Joseph Rogers Brown

Born 26 Jan 1810; died 23 Jul 1876 at age 66.American inventor and manufacturer who made numerous advances in the field of fine measurement and machine-tool production. He perfected and produced a highly accurate linear dividing engine in 1850, and in the succeeding two years he developed a vernier caliper reading to thousandths of an inch and also applied vernier methods to the protractor. Brown's micrometer caliper, widely used in industry, appeared in 1867. He also invented a precision gear cutter in 1855 to produce clock gears, a universal milling machine in 1862, and, perhaps his finest innovation, a universal grinding machine (patented in 1877), in which articles were hardened first and then ground, thereby increasing accuracy and eliminating waste. Cofounded J.R. Brown & Sharpe in 1853.[Image: Brown's universal milling machine]
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