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Calculate the number 592

NUMBERMANIA: Calculate the number 592 using numbers [1, 7, 8, 4, 21, 435] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 14

The first user who solved this task is Nasrin 24 T.

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Wrong Way

As a senior citizen was driving down the freeway, his car phone rang.
Answering, he heard his wife's voice urgently warning him.
“Herman, I just heard on the news that there's a car going the wrong way on 280 interstate. Please be careful!”
“It's not just one car,” said Herman. “It's hundreds of them!”

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Refrigerator patent

In 1899, Albert T. Marshall of Brockton, of Brockton, Mass., received a U.S. patent for a refrigerator, titled “Automatic Refrigerating Apparatus.” It was “to provide means for automatically regulating the admission of the refrigerating medium [anhyrous ammonia] to the expansion pipes or chambers; second, to combine a thermostat and rheostat to automatically control” the pump motor. He also added an automatic motor cut-off in case it was needed, and a means for automatically regulating the water used for cooling the refrigerant. For the next quarter century, he filed more patents, assigning them to the Automatic Refrigeration Company which introduced its first household refrigerators in 1914. By 1918 they introduced their first refrigerator with automatic control. The company became Kelvinator Corp. (24 Sep 1917). «

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