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Calculate the number 1617

NUMBERMANIA: Calculate the number 1617 using numbers [7, 3, 7, 3, 22, 552] 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.

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Fullerenes

In 1985, the first discovery of a fullerene was published in the journal Nature. In Sep 1985, the American chemists Robert F. Curl, Jr. and Richard E. Smalley, colleagues at Rice met with Sir Harold W. Kroto of the University of Sussex, England. In 11 days of research, they discovered the first fullerene, C60, a spherical cluster of carbon atoms. The discovery of this new structure, dubbed buckminsterfullerene or buckyball, opened a new branch of chemistry, and all three men were awarded the 1996 Nobel Prize for Chemistry for their work.

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