Joseph Henry (December 17, 1797 – May 13, 1878) was an American scientist who served as the first Secretary of the Smithsonian Institution. from the article ' BEGINNINGS AND FUTURE OF THE ARC-LAMP ' by S. M. Hamill from The Engineering Magazine DEVOTED TO INDUSTRIAL PROGRESS Volume VII April to September, 1894 NEW YORK The Engineering Magazine Co

---

Size: 1539px × 1727px
Location: USA
Photo credit: © Historic Illustrations / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: ., 1800s, 19th, ac, alternated, arc, arc-lamp, arc-light, arch, battery, brush, burn, burning, century, charles, current, davy, dc, direct, dynamo, early, electric, electrical, electricity, emit, emitting, engineering, engraving, experiment, experiments, faraday, generator, glow, heat, henry, historical, history, humphry, idr, illuminate, illumination, illustration, incandescent, joseph, lamp, lamps, light, lighting, lights, lit, michael, nineteenth, portrait, power, scientist, sir, victorian