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Calculate the number 1114

NUMBERMANIA: Calculate the number 1114 using numbers [2, 7, 1, 7, 83, 180] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 9

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

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Fluorine

In 1886, Henri Moissan's discovery of fluorine gas was announced at the Paris Academy of Science, two days after his first successful experiment to isolate the element, which he tested with silicon to find it burst into flame. “One can indeed make various hypotheses on the nature of the liberated gas; the simplest would be that we are in the presence of fluorine, but it would be possible, of course, that it might be a perfluoride of hydrogen, or even a mixture of hydrofluoric acid and ozone sufficiently active to explain such vigorous action as this gas exerts on crystalline silicon.” This conservative announcement was read to the Academy by Debray, for Moissan was not then a member. The president appointed a committee to check the discovery.*

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