technics, electrical engineering, electrostatic generator of Bertsch, wood engraving, late 19th century, ARTIST'S COPYRIGHT HAS NOT TO BE CLEARED

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Artist's Copyright has not to be cleared

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Size: 6000px × 4503px
Location:
Photo credit: © INTERFOTO / History / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: armcrank, armengaging, armscranksdiscdiscsdiskdiskselectric, armsfrictionfrictionsgeneratorgeneratorshistorichistoricalmotionmotionsphysicsscience, century, centurycrankcrank, powerelectricityengaging, sciences19th, technicselectricalengineeringelectrostaticgeneratorbertschwoodengraving19th