Engraving depicting the making of incandescent light bulbs. 1: Platinum wires with carbon filaments attached, fused to a glass stopper. 4: Glass tube. 5: Drawn out and blown into light bulbs. 2: Stopper (1) placed in the bulb. 3: Stopper and bulb fused together. 6: Lamp ready for exhaustion. 7: Exhausted and trimmed lamp bulb.

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Size: 6163px × 3403px
Location:
Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 19th, archival, archive, bulb, century, electric, electricity, engraving, glass, historic, historical, history, incandescent, light, lighting, platinum, science, wire