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Calculate the number 5589

NUMBERMANIA: Calculate the number 5589 using numbers [9, 7, 5, 5, 92, 658] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 22

The first user who solved this task is Sanja Šabović.

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Complete and Finished

There is a subtle but important difference between the words "complete" and "finished."

When you marry the right one, you are complete.

When you marry the wrong one, you are finished.

And if the right one catches you with the wrong one, you are completely finished.

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A.A. Griffith

Died 13 Oct 1963 at age 70 (born 13 Jun 1893).Alan Arnold Griffith was a British aeronautical engineer. During the late 1920s, A.A. Griffith and F. Whittle independently made the first practical proposals for the use of gas turbine engines in aircraft. Griffith concentrated on developing an axial flow compressor, and in 1929 he proposed a gas turbine engine driving a propeller, the so called turbo-prop engine. Earlier, in 1917, with G.I.Taylor, he published a pioneering article on the use of soap films in solving torsion problems. In 1920, he published a seminal article on the theory of the brittle fracture. At Rolls Royce (1939-60) he designed turbojet engines, and in the 1950s, vertical take-off aircraft. He developed the remarkable "flying bedstead" which first flew in 1954.

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