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What safety device did Alexander von Humboldt invent for miners?
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Alexander von Humboldt
Alexander von Humboldt, oil on canvas by Julius Schrader, 1859; in the Metropolitan Museum of Art, New York City.
While working in the Prussian Mining Department, Alexander von Humboldt invented a safety lamp to protect miners working in underground pits.1
In addition to this invention, he demonstrated a commitment to the welfare and education of workers by establishing a technical school for young miners, which he funded with his own resources.1