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Calculate the number 6339

NUMBERMANIA: Calculate the number 6339 using numbers [9, 7, 3, 7, 27, 919] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 2

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Dwayne Kennedy: Hard Working Mexicans

Mexicans work hard, brother. They work harder than everybody. Mexicans have the strongest work ethic on earth. If Mexicans had been slaves, slavery wouldve been over real quick because theyd have done 300 hours of work in about nine hours and still have time for a soccer game.

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Steam shovel

In 1839, Mr. William Smith Otis, civil engineer of Philadelphia, Penn., was issued a U.S. patent for the steam shovel (No. 1,089) for excavating and removing earth from railroads or canals. The patent drawing showed the crane mounted on a carriage or railroad car. A load of earth could be taken up by the scraper, raised by the crane and turned to be dumped, such as in railcars, and released. The patent described how a steam engine of a kind already in ordinary use, was installed with a power control mechanism for the crane, and a system of pulleys to move its arms and bucket. It could move about 380 cubic metres of earth a day, with its 1.1 cubic metre capacity shovel and 180° slewing wooden jib. It was first used on the Western Railroad in Mass.[Image: Steam shovel built by John Souther in his Globe Locomotive Works in South Boston, Mass. shown behind railcars it is loading with gravel (1857).]

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