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Calculate the number 4569

NUMBERMANIA: Calculate the number 4569 using numbers [2, 7, 8, 5, 64, 473] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 0

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Crazy people don't know they are crazy

Crazy people don't know they are crazy, I know i'm crazy therefore i'm not crazy. Isn't that crazy.

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Teletypesetting

In 1951, the Associated Press started using their new "teletypesetting" service in Charlotte, NC. The news article information was transmitted using a perforated, paper tape. At the receiving end of the circuit, a punch produced a copy of the perforated tape. This tape could then be used by typesetting machines. The first message sent was "Greetings. This is the opening of the first teletypesetter circuit," for they were the first news agency in the U.S. to begin such operation.

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