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Calculate the number 576

NUMBERMANIA: Calculate the number 576 using numbers [4, 4, 8, 5, 69, 303] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 6

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Electricians go with...

“Electricians go with the flow, never against the current!”

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Typesetting machine

In 1857, a U.S. patent was issued for the design of a typesetting machine invented by Timothy Alden of New York (No. 18,175). This is the first such machine that actually operated. The type was arranged in cells around the circumference of a horizontal wheel. As the wheel revolved, several receivers also started to rotate. The desired type was picked up and dropped in proper order in a line.

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