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MATH PUZZLE: Can you replace...

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

Correct answers: 288

The first user who solved this task is Erkain Mahajanian.

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Senior Year

You might be a red neck if you refer to the 5th grade as "my senior year."

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Shockley semiconductor amplifier idea

In 1939, William Shockley wrote in his laboratory notebook: “It has today occurred to me that an amplifier using semiconductors rather than vacuum is in principle possible.&rdquo. He went on to develop the transistor, for which he shared (with John Bardeen and Walter Brattain) the 1956 Nobel Prize in Physics.

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