Pavel Nikolaevich Yablochkov (1847 - 1894), Russian electrical engineer, businessman and the inventor of the Yablochkov candle (a type of electric carbon arc lamp) and the transformer.
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Photo credit: © World History Archive / Alamy / Afripics
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Keywords: 1894, arc, businessman, candle, carbon, electric, electrical, engineer, inventor, lamp, nikolaevich, pavel, russian, transformer, yablochkov