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A modern jet engine is a complex mechanical wonder. However, these aren't engines that will just roar into action with the turn of a key or the press of a button. Often, turbine engines will need ...

Shares of Caterpillar, the maker of mining and construction machinery, are up more than 30% since year-end, making it the biggest contributor to the Dow Jones Industrial Average. WSJ’s Jonathan Weil ...

Walls 3 feet thick and giant doors weighing hundreds of thousands of pounds enclose a sort of laboratory for jet engines. Delta says this is the first such facility built in the United States in 20 ...