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MATH PUZZLE: Can you replace...

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

Correct answers: 127

The first user who solved this task is Brian Macpherson.

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A husband and wife are shoppin...

A husband and wife are shopping when the wife says, "Darling, it's my mother's birthday tomorrow. What shall we buy for her? Do you think she would like something electric?"
"Sure," the husband says, "how about a chair?"

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Alfred Kastler

Died 7 Jan 1984 at age 81 (born 3 May 1902).French physicist who won the Nobel Prize for Physics in 1966 for his discovery and development of methods for observing Hertzian resonances within atoms. This research facilitated the greater understanding of the structure of the atom by studying the radiations that atoms emit when excited by light and radio waves. He developed a method called "optical pumping" which caused atoms in a sample substance to enter higher energy states. This idea was an important predecessor to the development of masers and the lasers which utilized the light energy that was re-emitted when excited atoms released the extra energy obtained from optical pumping.

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