Draining a mine by means of a suction pump. The man in the top right of the picture is operating the piston of the pump by raising and lowering the opposite end of the beam to which the piston rod is attached. From 'De re metallica', by Agricola, pseudonym of Georg Bauer (Basle, 1556). Woodcut.

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Draining a mine by means of a suction pump. The man in the top right of the picture is operating the piston of the pump by raising and lowering the opposite end of the beam to which the piston rod is attached. From 'De re metallica', by Agricola, pseudonym of Georg Bauer (Basle, 1556). Woodcut.

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Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
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