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MATH PUZZLE: Can you replace...

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

Correct answers: 122

The first user who solved this task is Sanja Šabović.

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Complete and Finished

There is a subtle but important difference between the words "complete" and "finished."

When you marry the right one, you are complete.

When you marry the wrong one, you are finished.

And if the right one catches you with the wrong one, you are completely finished.

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Giulio Natta

Born 26 Feb 1903; died 2 May 1979 at age 76.Italian chemist who contributed to the development of high polymers useful in the manufacture of films, plastics, fibres, and synthetic rubber. Along with Karl Ziegler of Germany, he was honoured in 1963 with the Nobel Prize for Chemistry for the development of Ziegler-Natta catalysts. Natta found that certain types of Ziegler catalysts lead to macromolecules with a spatially uniform structure, called isotactic chains. Whereas ordinary hydrocarbon chains are zigzaged, isotactic chains form helices with the side groups pointing outwards. Such polymers give rise to novel synthetic products. Examples are light but strong fabrics, and ropes which float on the water.

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