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Calculate the number 4984

NUMBERMANIA: Calculate the number 4984 using numbers [2, 1, 9, 4, 52, 947] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 11

The first user who solved this task is Nílton Corrêa de Sousa.

#brainteasers #math #numbermania

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Twin In Prison

So my twin brother called me from prison

He said, "So you know how we finish each others' sentences?"

Author:TheJenkinsComic reddit user

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Hendrik Willem Bakhuis-Roozeboom

Born 24 Oct 1854; died 8 Feb 1907 at age 52.Dutch physical chemist who publicized Gibbs's phase rule throughout Europe. Having originally heard about it from Van der Waals, Bakhuis-Roozeboom converted Gibbs theory into practice. Whereas Gibbs had rarely experimented, Bakhuis-Roozeboom made all sorts of measurements that served to prove the validity of the phase rule, and in addition, worked out the details of its application to many individual cases. The modern chemistry of alloys benefits greatly from his amplification of the understanding of the phase rule*. In 1899, he and Albert Ladenburg demonstrated, independently of each other, when an inactive separable substance will be a racemic compound or mixture of the inactive compounds.[Image: a Roozeboom diagram]

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