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Calculate the number 2340

NUMBERMANIA: Calculate the number 2340 using numbers [9, 5, 4, 9, 75, 905] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 29

The first user who solved this task is Sanja Šabović.

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Thomas Corwin Mendenhall

Died 23 Mar 1924 at age 82 (born 4 Oct 1841).American physicist and meteorologist who was the first to propose the use of a ring pendulum for measuring absolute gravity. From 1889 to 1894 he served both as Director of the U.S. Coast and Geodetic Survey and also Superintendent of the U.S. Standard Weights and Measures where he oversaw the shift in the fundamental standards of the U.S. from the English yard and pound to the international meter and kilogram. Mendenhall devised a quarter second's pendulum for gravity measurements and instituted improvements in the measurement of base lines with wire tapes, in the construction of instruments for precise leveling and in the methods used in triangulation and gravity work, and developed a comprehensive plan for the study of terrestrial magnetism.

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