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Calculate the number 1060

NUMBERMANIA: Calculate the number 1060 using numbers [4, 2, 3, 1, 78, 494] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 22

The first user who solved this task is Djordje Timotijevic.

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Rotary washer

In 1858, a U.S. patent was issued for cycling reheated water in a washing machine, to Hamilton E. Smith of Philadelphia, Pennsylvania (No. 21,909). His invention was an improvement for washing machines in which a reciprocating plunger acts on clothes in a tub. His invention placed two horizontal diaphragms in the tub. Both moved vertically with the action of the plunger. The upper one was perforated, and the lower one had a valve. Below the lower diaphragm springs pushed it up as the plunger was lifted. Their motion acted to pump water into the tub from a circuit of pipe that included coils in a heating tank and drained cooler water from the top of the tub. Smith improved his machine and obtained a second patent in 1863.

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