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MATH PUZZLE: Can you replace...

MATH PUZZLE: Can you replace the question mark with a number?

Correct answers: 147

The first user who solved this task is Djordje Timotijevic.

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I was wondering why the ball k...

I was wondering why the ball kept getting bigger and bigger, and then it hit me.

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Karl Mohr

Died 28 Sep 1879 at age 72 (born 4 Nov 1806).Karl Friedrich Mohr was a German analytical chemist and geologist who invented or improved a number of titration procedures. His book (1855) on the subject was the first to broadly cover the new field of analytical chemistry, and was well received. It was translated, and had eight editions. His name remains associated with the Mohr pinchcock burrette.[Name also spelled Carl.]

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