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Ventilating a mine. Various forms of fan which could be mounted on an axle inside a ventilating drum. A) Thin boards forming paddles. B) Short boards with feather shaped pieces of supple wood fixed on them. C) Short boards fitted with goose feathers., From De re metallica, by Agricola, pseudonym of
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Stock Photography Category: Industry Art
Image Keywords: 16th Century, Adults Only, architecture, art, black and white, day, fame, front view, full length, Georg Agricola, Georg Bauer, Georgius Agricola, horizontal, illustration, Illustration And Painting, industry, invention, men, mine, Mineralogist, mining, Named Person, Only Men, outdoors, paddle, Painted Image, paintings, physicist, research, scientist, standing, technology, Traditional Clothing, Two People, Ventilating, Ventilating Drum, Ventilation Drum, Industry Art
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