Power shovels used to excavate the earth have proved essential to the mining industry, including open-pit and coal mining in the United States, for 150 years. Made up of a boom, dipper stick and ...

RACINE - Frank Lloyd Wright's legacy includes famously leaky roofs. The landmark SC Johnson Administration Building, 1525 Howe St., which he designed in 1936, is no exception. The Great Workroom ...

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