Binoculars.

---

Size: 5000px × 3662px
Photo credit: © TON KINSBERGEN/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 1800s, alessandro, batteries, battery, coloured, copper, current, electric, electrochemical, engraving, galvani, historical, italian, physicist, physics, pile, portrait, series, technology, volt, volta, voltaic, zinc