![](http://www.alamy.com/thumbs/6/59277833-E887-4DB8-996C-86ACD20C0C70/2CWBJMA.jpg)
Engraving depicting Charles-Augustin de Coulomb's torsion balance.
Size: 4033px × 5200px
Location:
Photo credit: © World History Archive / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 18th, archival, archive, balance, century, charles-augustin, coulomb, de, electric, electricity, engraving, force, gravitational, historic, historical, history, magnetic, physics, science, stress, tension, torsion