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Find number abc

If ba53b + c573a = 7c2cb find number abc. Multiple solutions may exist.

Correct answers: 9

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Party Hardy

What did the janitor say when he jumped out of the closet?
"SUPPLIES!"

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Bohr's model of the atom

In 1913, this date was written by Niels Bohr on his first paper describing his new ideas on atomic structure, and mailed to his mentor, Ernest Rutherford. It was one of three historic papers he wrote on this subject.

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