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Calculate the number 1748

NUMBERMANIA: Calculate the number 1748 using numbers [9, 2, 8, 2, 72, 505] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 27

The first user who solved this task is Sanja Šabović.

#brainteasers #math #numbermania

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Paying For His Mistake

A husband and wife had a big argument. Frustrated and fed up, the wife called up her mom and said, "We fought again, I can't do this anymore. I am coming to live with you."

Mom said, "No darling, he must pay for his mistake. I am coming to live with you."

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Irving Langmuir

Born 31 Jan 1881; died 16 Aug 1957 at age 76. American physical chemist whose studies of molecular films on solid and liquid surfaces opened new fields in colloid research and biochemistry and won him the Nobel Prize for Chemistry in 1932. His early work on gases led to the invention of the Langmuir condensation pump. In 1913, Langmuir found that the life of the tungsten vacuum bulbs then in use could be extended considerably if they were filled with a mixture of nitrogen and argon. He also developed an atomic-hydrogen welding torch capable of temperatures up to 3,000°C, and made first use of the term plasma. While studying atomic structure he introduced the terms covalence and electrovalence. In surface chemistry, he worked the phenomenon of adsorption and the application of this to catalysis.

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